부산대학교 도서관

Dmytriw, Adam A; Ghozy, Sherief; Sweid, Ahmad; Piotin, Michel; Bekelis, Kimon; Sourour, Nader; Raz, Eytan; Vela‐Duarte, Daniel; Linfante, Italo; Dabus, Guilherme; Kole, Max; Martínez‐Galdámez, Mario; Nimjee, Shahid M; Lopes, Demetrius K; Hassan, Ameer E; Kan, Peter; Ghorbani, Mohammad; Levitt, Michael R; Escalard, Simon; Missios, Symeon; Shapiro, Maksim; Clarençon, Fréderic; Elhorany, Mahmoud; Tahir, Rizwan A; Youssef, Patrick P; Pandey, Aditya S; Starke, Robert M; Naamani, Kareem El; Abbas, Rawad; Mansour, Ossama Y; Galvan, Jorge; Billingsley, Joshua T; Mortazavi, Abolghasem; Walker, Melanie; Dibas, Mahmoud; Settecase, Fabio; Heran, Manraj KS; Kuhn, Anna L; Puri, Ajit S; Menon, Bijoy K; Sivakumar, Sanjeev; Mowla, Ashkan; D'Amato, Salvatore; Zha, Alicia M; Cooke, Daniel; Vranic, Justin E; Regenhardt, Robert W; Rabinov, James D; Stapleton, Christopher J; Goyal, Mayank; Wu, Hannah; Cohen, Jake; Turkel‐Parella, David; Xavier, Andrew; Waqas, Muhammad; Tutino, Vincent; Siddiqui, Adnan; Gupta, Gaurav; Nanda, Anil; Khandelwal, Priyank; Tiu, Cristina; Portela, Pere C; de la Ossa, Natalia Perez; Urra, Xabier; Lera, Mercedes; Arenillas, Juan F; Ribo, Marc; Requena, Manuel; Piano, Mariangela; Pero, Guglielmo; Sousa, Keith; Al‐Mufti, Fawaz; Hashim, Zafar; Nayak, Sanjeev; Renieri, Leonardo; Du, Rose; Aziz‐Sultan, Mohamed A; Liebeskind, David; Nogueira, Raul G; Abdalkader, Mohamad; Nguyen, Thanh N; Vigilante, Nicholas; Siegler, James E; Grossberg, Jonathan A; Saad, Hassan; Gooch, Michael R; Herial, Nabeel A; Rosenwasser, Robert H; Tjoumakaris, Stavropoula; Patel, Aman B; Tiwari, Ambooj; Jabbour, Pascal; Investigators, North American Neurovascular COVID‐19 Consortium Society of Vascular and Interventional Neurology

European Journal of Neurology. 29(11)

Jabbour, Pascal; Dmytriw, Adam A; Sweid, Ahmad; Piotin, Michel; Bekelis, Kimon; Sourour, Nader; Raz, Eytan; Linfante, Italo; Dabus, Guilherme; Kole, Max; Martínez-Galdámez, Mario; Nimjee, Shahid M; Lopes, Demetrius K; Hassan, Ameer E; Kan, Peter; Ghorbani, Mohammad; Levitt, Michael R; Escalard, Simon; Missios, Symeon; Shapiro, Maksim; Clarençon, Frédéric; Elhorany, Mahmoud; Vela-Duarte, Daniel; Tahir, Rizwan A; Youssef, Patrick P; Pandey, Aditya S; Starke, Robert M; Naamani, Kareem El; Abbas, Rawad; Hammoud, Bassel; Mansour, Ossama Y; Galvan, Jorge; Billingsley, Joshua T; Mortazavi, Abolghasem; Walker, Melanie; Dibas, Mahmoud; Settecase, Fabio; Heran, Manraj KS; Kuhn, Anna L; Puri, Ajit S; Menon, Bijoy K; Sivakumar, Sanjeev; Mowla, Ashkan; D'Amato, Salvatore; Zha, Alicia M; Cooke, Daniel; Goyal, Mayank; Wu, Hannah; Cohen, Jake; Turkel-Parrella, David; Xavier, Andrew; Waqas, Muhammad; Tutino, Vincent M; Siddiqui, Adnan; Gupta, Gaurav; Nanda, Anil; Khandelwal, Priyank; Tiu, Cristina; Portela, Pere C; de la Ossa, Natalia Perez; Urra, Xabier; de Lera, Mercedes; Arenillas, Juan F; Ribo, Marc; Requena, Manuel; Piano, Mariangela; Pero, Guglielmo; De Sousa, Keith; Al-Mufti, Fawaz; Hashim, Zafar; Nayak, Sanjeev; Renieri, Leonardo; Aziz-Sultan, Mohamed A; Nguyen, Thanh N; Feineigle, Patricia; Patel, Aman B; Siegler, James E; Badih, Khodr; Grossberg, Jonathan A; Saad, Hassan; Gooch, M Reid; Herial, Nabeel A; Rosenwasser, Robert H; Tjoumakaris, Stavropoula; Tiwari, Ambooj

Neurosurgery. 90(6)

Lognon, P.; Gariel, F.; Marnat, G.; Darcourt, J.; Constant dit Beaufils, P.; Burel, J.; Shotar, E.; Hak, J. F.; Fauché, C.; Kerleroux, B.; Guédon, A.; Ognard, J.; Forestier, G.; Pop, R.; Paya, C.; Veyrières, J. B.; Sporns, P.; Girot, J. B.; Zannoni, R.; Zhu, F.; Crespy, A.; L’Allinec, V.; Mihoc, D.; Rouchaud, A.; Gentric, J. C.; Ben Hassen, W.; Raynaud, N.; Testud, B.; Clarençon, F.; Kaczmarek, B.; Bourcier, R.; Bellanger, G.; Boulouis, G.; Janot, Kevin

Neuroradiology: A Journal Dedicated to Neuroimaging and Interventional Neuroradiology. 64(12):2363-2371

Costalat V; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Jovin TG; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Albucher JF; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Cognard C; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Henon H; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Nouri N; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Gory B; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Richard S; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Marnat G; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Sibon I; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Di Maria F; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Annan M; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Boulouis G; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Cardona P; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Obadia M; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Piotin M; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Bourcier R; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Guillon B; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Godard S; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Pasco-Papon A; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Eker OF; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Cho TH; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Turc G; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Naggara O; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Velasco S; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Lamy M; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Clarençon F; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Alamowitch S; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Renu A; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Suissa L; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Brunel H; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Gentric JC; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Timsit S; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Lamy C; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Chivot C; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Macian-Montoro F; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Mounayer C; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Ozkul-Wermester O; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Papagiannaki C; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Wolff V; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Pop R; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Ferrier A; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Chabert E; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Ricolfi F; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Béjot Y; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Lopez-Cancio E; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Vega P; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Spelle L; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Denier C; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Millán M; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Arenillas JF; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Mazighi M; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Houdart E; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Del Mar Freijo M; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Duhamel A; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Sanossian N; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Liebeskind DS; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Labreuche J; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Lapergue B; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.; Arquizan C; From the Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier (V.C.), the Departments of Neurology (J.F. Albucher) and Neuroradiology (C. Cognard), Hôpital Pierre Paul Riquet, and Toulouse Clinical Investigations Centers 1436 (J.F. Albucher, C. Cognard), Toulouse, the Departments of Neurology (H.H.) and Neuroradiology (N.N.), Hôpital Salengro, and the Department of Biostatistics, Centre Hospitalier Universitaire (CHU) Lille (A.D., J.L.), Lille, the Department of Neuroradiology, Hôpital central, L'unité d'Imagerie Adaptative Diagnostique et Interventionnelle, INSERM Unité 1254 (B. Gory), and the Department of Neurology, Hôpital central, Centre d'investigation clinique Plurithématique 1433, INSERM Unité 1116 (S.R.), Nancy, the Departments of Neuroradiology (G.M.) and Neurology (I.S.), Hôpital Pellegrin, Bordeaux, the Department of Neuroradiology, Hôpital Foch, Suresnes (F.D.M.), the Departments of Neurology (M.A.) and Neuroradiology (G.B.), Hôpital Bretonneau, Tours, the Departments of Neurology (M.O.) and Neuroradiology (M.P.), Hôpital Fondation Adolphe de Rothschild, the Departments of Neurology (G.T.) and Neuroradiology (O.N.), Groupe Hospitalier Universitaire Paris, Centre Hospitalier Sainte-Anne, INSERM Unité 1266, the Departments of Neuroradiology (F.C.) and Neurology (S.A.), Hôpital La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), the Departments of Neuroradiology (L. Spelle) and Neurology (C.D.), Hôpital Bicêtre, AP-HP, the Departments of Neurology (M. Mazighi) and Neuroradiology (E.H.), Hôpital Lariboisière AP-HP, and INSERM Unité 1266 (C.A.), Paris, the Department of Neuroradiology, Nantes Université, CHU Nantes (R.B.), INSERM Unité Mixte de Recherche 1087, Centre National de la Recherche Scientifique, University of Nantes, L'institut du Thorax (R.B.), and Clinique Neurologique, Hôpital G.R. Laennec CHU Nantes (B. Guillon), Nantes, the Departments of Neurology (S.G.) and Neuroradiology (A.P.-P.), CHU d'Angers, Angers, the Departments of Neuroradiology (O.F.E.) and Neurology (T.-H.C.), Hospices Civils de Lyon, Groupement Hospitalier Est Hôpital Pierre Wertheimer, Lyon, the Departments of Neuroradiology (S.V.) and Neurology (M.L.), CHU Poitiers, Site de La Milétrie, Poitiers, the Stroke Unit (L. Suissa) and the Department of Neuroradiology (H.B.), Assistance Publique-Hôpitaux de Marseille, Hôpital de la Timone, Marseille, the Departments of Neuroradiology (J.-C.G.) and Neurology (S.T.), Centre Hospitalier Régional Universitaire (CHRU) Brest, Hôpital de la Cavale Blanche, Brest, the Departments of Neurology (C.L.) and Neuroradiology (C. Chivot), CHU Amiens-Picardie, Amiens, the Departments of Neurology (F.M.-M.) and Neuroradiology (C.M.), CHU Limoges, Dupuytren, Limoges, the Departments of Neurology (O.O.-W.) and Neuroradiology (C.P.), CHU Rouen, Rouen, the Departments of Neurology (V.W.) and Neuroradiology (R.P.), CHRU Strasbourg, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, the Departments of Neurology (A.F.) and Neuroradiology (E.C.), CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Clermont-Ferrand, the Departments of Neuroradiology (F.R.) and Neurology (Y.B.), CHU Dijon-Bourgogne, Hôpital François Mitterrand, Dijon, and the Department of Neurology, Hôpital Foch, Suresnes (B.L.), and the Department of Neurology, Hôpital Gui de Chauliac, Montpellier (C.A.) - all in France; Cooper Neurological Institute and Cooper Medical School of Rowan University, Camden, NJ (T.G.J.); the Department of Neurology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (P.C.), and the Department of Neurology, Hospital Clínic de Barcelona (A.R.), Barcelona, the Department of Radiology, Hospital Universitario Central de Asturias, Oviedo (E.L.-C., P.V.), the Department of Neurology Hospital Germans Trias i Pujol, Badalona (M. Millán), Hospital Clínico Universitario de Valladolid, Valladolid (J.F. Arenillas), and the Department of Neurology, Hospital Universitario Cruces, Baracaldo (M.M.F.) - all in Spain; and the Department of Neurology, University of Southern California (N.S.), and the Department of Neurology, UCLA (D.S.L.) - both in Los Angeles.

Publisher: Massachusetts Medical Society Country of Publication: United States NLM ID: 0255562 Publication Model: Print Cited Medium: Internet ISSN: 1533-4406 (Electronic) Linking ISSN: 00284793 NLM ISO Abbreviation: N Engl J Med Subsets: MEDLINE

Bourcier R; Department of Diagnostic and Therapeutic Neuroradiology, University Hospital of Nantes, Thorax Institute, Nantes, France. Electronic address: romain.bourcier@chu-nantes.fr.; Marnat G; Department of Neuroradiology, University Hospital of Bordeaux, Bordeaux, France.; Dargazanli C; Institut de Génomique Fonctionnelle, Université de Montpellier, Montpellier, France.; Zhu F; Department of Diagnostic and Interventional Neuroradiology, University Hospital of Nancy, Nancy, France.; Consoli A; Diagnostic and Interventional Neuroradiology, Foch Hospital, Suresnes, University of Versailles Saint-Quentin-des-Yvelines, Versailles, France.; Shotar E; Department of Neuroradiology, La Pitie Salpetrière Hospital, Paris, France.; Premat K; Department of Neuroradiology, La Pitie Salpetrière Hospital, Paris, France.; Eugene F; Department of Medical Imaging, University Hospital of Rennes, Rennes, France.; Janot K; Department of Neuroradiology, University Hospital of Tours, Tours, France.; L'Allinec V; Department of Radiology, University Hospital of Angers, Angers, France.; Ognard J; Brest University Hospital, Radiology Department, GETBO Research Unit, Brest, France.; Desilles JP; Department of Interventional Neuroradiology, Rothschild Foundation Hospital, Paris, France.; Blanc R; Department of Interventional Neuroradiology, Rothschild Foundation Hospital, Paris, France.; Gentric JC; Brest University Hospital, Radiology Department, GETBO Research Unit, Brest, France.; Bourdain F; Department of Neurology, Regional Hospital of Bayonne, Bayonne, France.; Labreuche J; Department of Biostatistics, University Hospital of Lille, Lille, France.; Liao L; Department of Diagnostic and Interventional Neuroradiology, University Hospital of Nancy, Nancy, France.; Clarençon F; Department of Neuroradiology, La Pitie Salpetrière Hospital, Paris, France.; Barreau X; Department of Neuroradiology, University Hospital of Bordeaux, Bordeaux, France.; Ifergan H; Department of Neuroradiology, University Hospital of Tours, Tours, France.; Hak JF; Department of Neuroradiology, University Hospital of Marseille, Marseille, France.; Kerleroux B; Department of Neuroradiology, University Hospital of Marseille, Marseille, France.; Pop R; Interventional Neuroradiology Department, Strasbourg University Hospitals, Strasbourg, France.; Soize S; Department of Neuroradiology, University Hospital of Reims, Reims, France.; Bricout N; Interventional Neuroradiology, Hospital Center University of Lille, Lille, France.; Caroff J; Department of Neuroradiology, Bicêtre Hospital, Paris Saclay University, Le Kremlin-Bicêtre, Île-de-France, France.; Richter JS; Department of Radiology, Hospital Center of Pau, Pau, France.; Desal H; Department of Diagnostic and Therapeutic Neuroradiology, University Hospital of Nantes, Thorax Institute, Nantes, France.; Lapergue B; Department of Neuroradiology and Stroke Unit, Foch Hospital, Suresnes, France, University of Versailles Saint-Quentin-des-Yvelines, Versailles, France.; Rouchaud A; Department of Interventional Neuroradiology, Limoges University Hospital, Limoges, France.

Publisher: Lancet Pub. Group Country of Publication: England NLM ID: 101139309 Publication Model: Print Cited Medium: Internet ISSN: 1474-4465 (Electronic) Linking ISSN: 14744422 NLM ISO Abbreviation: Lancet Neurol Subsets: MEDLINE

Sgreccia A; Diagnostic and Interventional Neuroradiology, Foch Hospital, Suresnes, France (A.S., B.L., A.C.).; Desilles JP; Department of Interventional Neuroradiology, Rothschild Foundation Hospital, Paris, France (J.-P.D., M.P.).; Costalat V; Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, France (V.C., C.D.).; Dargazanli C; Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, France (V.C., C.D.).; Bourcier R; Department of Diagnostic and Interventional Neuroradiology, University Hospital of Nantes, France (R.B., G.T.).; Tessier G; Department of Diagnostic and Interventional Neuroradiology, University Hospital of Nantes, France (R.B., G.T.).; Rouchaud A; Interventional Neuroradiology Department, Centre Hospitalier Universitaire Limoges, France (A.R., S.S.).; Saleme S; Interventional Neuroradiology Department, Centre Hospitalier Universitaire Limoges, France (A.R., S.S.).; Spelle L; Interventional Neuroradiology Department, Kremlin Bicêtre Hospital, France (L.S., J.C.).; Caroff J; Interventional Neuroradiology Department, Kremlin Bicêtre Hospital, France (L.S., J.C.).; Marnat G; Interventional Neuroradiology Department, Centre Hospitalier Régional Universitaire Bordeaux, France (G.M., X.B.).; Barreau X; Interventional Neuroradiology Department, Centre Hospitalier Régional Universitaire Bordeaux, France (G.M., X.B.).; Clarençon F; Department of Neuroradiology, Pitié-Salpêtrière Hospital, Paris, France (F.C., E.S.).; Shotar E; Department of Neuroradiology, Pitié-Salpêtrière Hospital, Paris, France (F.C., E.S.).; Eugene F; Department of Neuroradiology, Centre Hospitalier Universitaire de Rennes, France (F.E.).; Houdart E; Department of Neuroradiology, Lariboisière Hospital, Paris, France (E.H.).; Gory B; Department of Neuroradiology, Centre Hospitalier Universitaire de Rennes, France (B.G., F.Z.).; Zhu F; Department of Neuroradiology, Centre Hospitalier Universitaire de Rennes, France (B.G., F.Z.).; Labreuche J; Department of Biostatistics, Centre Hospitalier Universitaire Lille, Equipe d'accueil 2694 Santé Publique: Epidémiologie et Qualité des Soins, University Lille, France (J.L.).; Piotin M; Department of Interventional Neuroradiology, Rothschild Foundation Hospital, Paris, France (J.-P.D., M.P.).; Lapergue B; Diagnostic and Interventional Neuroradiology, Foch Hospital, Suresnes, France (A.S., B.L., A.C.).; Consoli A; Diagnostic and Interventional Neuroradiology, Foch Hospital, Suresnes, France (A.S., B.L., A.C.).

Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 0235266 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1524-4628 (Electronic) Linking ISSN: 00392499 NLM ISO Abbreviation: Stroke Subsets: MEDLINE

Lampros, A.; Caumes, E.; Psimaras, D.; Galanaud, D.; Clarençon, F.; Peyre, M.; Deltour, S.; Bielle, F.; Lhote, R.; Haroche, J.; Amoura, Z.; Cohen Aubart, F.

In La revue de médecine interne April 2021 42(4):258-268

Ifergan H; Diagnostic and Interventional Neuroradiology, University Hospital of Tours, Tours, Centre, France ifergan.heloise@hotmail.fr.; Dargazanli C; Diagnostic and Interventional Neuroradiology, University Hospital Centre Montpellier, Montpellier, Occitanie, France.; Ben Hassen W; Diagnostic and Interventional Neuroradiology, Saint Anne Hospital Centre, Paris, France.; Hak JF; Diagnostic and Interventional Neuroradiology, Hospital Timone, University Hospital of Marseille, Marseille, France.; Gory B; Department of Diagnostic and Therapeutic Neuroradiology, University of Lorraine, INSERM U1254, IADI, F-54000, University Hospital of Nancy, Nancy, France.; Ognard J; Diagnostic and Interventional Neuroradiology, University and Regional Hospital Centre Brest, Brest, France.; Premat K; Diagnostic and Interventional Neuroradiology, University Hospital of Pitié Salpêtrière, APHP, Paris, France.; Marnat G; Diagnostic and Interventional Neuroradiology, University Hospital of Bordeaux, Bordeaux, France.; Kerleroux B; Diagnostic and Interventional Neuroradiology, Saint Anne Hospital Centre, Paris, France.; Zhu F; Diagnostic and Interventional Neuroradiology, University Hospital of Nancy, Nancy, France.; Bellanger G; Diagnostic and Interventional Neuroradiology, University Hospital of Toulouse, Toulouse, France.; Sporns PB; Diagnostic and Interventional Neuroradiology, University Hospital of Basel, Basel, Switzerland.; Charbonnier G; Diagnostic and Interventional Neuroradiology, University Hospital of Besançon, Besancon, France.; Forestier G; Diagnostic and Interventional Neuroradiology, University Hospital of Limoges, Limoges, France.; Caroff J; Department of Interventional Neuroradiology - NEURI Brain Vascular Center, Bicêtre Hospital, APHP, Le Kremlin Bicêtre, France.; Fauché C; Diagnostic and Interventional Neuroradiology, University Hospital of Poitiers, Poitiers, France.; Clarençon F; Diagnostic and Interventional Neuroradiology, University Hospital of Pitié Salpêtrière, APHP, Paris, France.; Janot K; Diagnostic and Interventional Neuroradiology, University Hospital of Tours, Tours, Centre, France.; Lapergue B; Neurology, Stroke Center, University of Versailles and Saint Quentin en Yvelines, Foch Hospital, Suresnes, France.; Boulouis G; Diagnostic and Interventional Neuroradiology, University Hospital of Tours, Tours, Centre, France.

Publisher: BMJ Publishing Group Country of Publication: England NLM ID: 101517079 Publication Model: Electronic Cited Medium: Internet ISSN: 1759-8486 (Electronic) Linking ISSN: 17598478 NLM ISO Abbreviation: J Neurointerv Surg Subsets: MEDLINE

Dmytriw AA; Neuroendovascular Program, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.; Neurovascular Centre, Divisions of Therapeutic Neuroradiology and Neurosurgery, St. Michael's Hospital, University of Toronto, ON, Canada.; Musmar B; Department of Neurosurgery and Interventional Neuroradiology, Louisiana State University, Shreveport, LA, USA.; Salim H; Department of Radiology, Division of Neuroradiology, Johns Hopkins Medical Center, Baltimore, MD, USA.; Ghozy S; Department of Neurological Surgery and Radiology, Mayo Clinic, Rochester, MN, USA.; Siegler JE; Cooper Neurological Institute, Cooper University Hospital, Cooper Medical School of Rowen University, Camden, NJ, USA.; Kobeissi H; Department of Neurological Surgery and Radiology, Mayo Clinic, Rochester, MN, USA.; Shaikh H; Cooper Neurological Institute, Cooper University Hospital, Cooper Medical School of Rowen University, Camden, NJ, USA.; Khalife J; Cooper Neurological Institute, Cooper University Hospital, Cooper Medical School of Rowen University, Camden, NJ, USA.; Abdalkader M; Departments of Radiology and Neurology, Boston Medical Center, Boston, MA, USA.; Klein P; Departments of Radiology and Neurology, Boston Medical Center, Boston, MA, USA.; Nguyen TN; Departments of Radiology and Neurology, Boston Medical Center, Boston, MA, USA.; Heit JJ; Department of Interventional Neuroradiology, Stanford Medical Center, Palo Alto, CA, USA.; Regenhardt RW; Neuroendovascular Program, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.; Cancelliere NM; Neurovascular Centre, Divisions of Therapeutic Neuroradiology and Neurosurgery, St. Michael's Hospital, University of Toronto, ON, Canada.; Bernstock JD; Department of Neurosurgery, Brigham and Women's Hospital, Boston, MA, USA.; Naamani KE; Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA, USA.; Amllay A; Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA, USA.; Meyer L; Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.; Dusart A; Department of Neurology, Hôpital Civil Marie Curie, Charleroi, Belgium.; Bellante F; Department of Neurology, Hôpital Civil Marie Curie, Charleroi, Belgium.; Forestier G; University Hospital of Limoges, Neuroradiology Department, Dupuytren, Université de Limoges, XLIM CNRS, UMR 7252, Limoges, France.; Rouchaud A; University Hospital of Limoges, Neuroradiology Department, Dupuytren, Université de Limoges, XLIM CNRS, UMR 7252, Limoges, France.; Saleme S; University Hospital of Limoges, Neuroradiology Department, Dupuytren, Université de Limoges, XLIM CNRS, UMR 7252, Limoges, France.; Mounayer C; University Hospital of Limoges, Neuroradiology Department, Dupuytren, Université de Limoges, XLIM CNRS, UMR 7252, Limoges, France.; Fiehler J; Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.; Kühn AL; Division of Neurointerventional Radiology, Department of Radiology, University of Massachusetts Medical Center, Worcester, MA, USA.; Puri AS; Division of Neurointerventional Radiology, Department of Radiology, University of Massachusetts Medical Center, Worcester, MA, USA.; Dyzmann C; Neuroradiology Department, Sana Kliniken, Lübeck GmbH, Lübeck, Germany.; Kan PT; Department of Neurosurgery, University of Texas Medical Branch, Galveston, TX, USA.; Colasurdo M; Department of Neurosurgery, University of Texas Medical Branch, Galveston, TX, USA.; Department of Interventional Radiology, Oregon Health and Science University, Portland, OR, USA.; Marnat G; Interventional Neuroradiology Department, Bordeaux University Hospital, Bordeaux, France.; Berge J; Interventional Neuroradiology Department, Bordeaux University Hospital, Bordeaux, France.; Barreau X; Interventional Neuroradiology Department, Bordeaux University Hospital, Bordeaux, France.; Sibon I; Neurology Department, Bordeaux University Hospital, Bordeaux, France.; Nedelcu S; Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA, USA.; Henninger N; Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA, USA.; Department of Psychiatry, University of Massachusetts Chan Medical School, Worcester, MA, USA.; Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.; Marotta TR; Neurovascular Centre, Divisions of Therapeutic Neuroradiology and Neurosurgery, St. Michael's Hospital, University of Toronto, ON, Canada.; Stapleton CJ; Neuroendovascular Program, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.; Rabinov JD; Neuroendovascular Program, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.; Ota T; Department of Neurosurgery, Tokyo Metropolitan Tama Medical Center, Fuchu, Japan.; Dofuku S; Department of Neurosurgery, Tokyo Metropolitan Tama Medical Center, Fuchu, Japan.; Yeo LL; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.; Tan BY; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.; Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore.; Gopinathan A; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.; Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore.; Martinez-Gutierrez JC; Department of Neurology, UTHealth McGovern Medical School, Houston, TX, USA.; Salazar-Marioni S; Department of Neurology, UTHealth McGovern Medical School, Houston, TX, USA.; Sheth S; Interventistica Neurovascolare, Ospedale Careggi di Firenze, Florence, Italy.; Renieri L; Interventistica Neurovascolare, Ospedale Careggi di Firenze, Florence, Italy.; Capirossi C; Interventistica Neurovascolare, Ospedale Careggi di Firenze, Florence, Italy.; Mowla A; Division of Stroke and Endovascular Neurosurgery, Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.; Chervak L; Department of Neurology and Radiology, University of Cincinnati, Cincinnati, OH, USA.; Vagal A; Department of Neurology and Radiology, University of Cincinnati, Cincinnati, OH, USA.; Adeeb N; Department of Neurosurgery and Interventional Neuroradiology, Louisiana State University, Shreveport, LA, USA.; Cuellar-Saenz HH; Department of Neurosurgery and Interventional Neuroradiology, Louisiana State University, Shreveport, LA, USA.; Tjoumakaris SI; Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA, USA.; Jabbour P; Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA, USA.; Khandelwal P; Department of Endovascular Neurosurgery and Neuroradiology, Rutgers New Jersey Medical School, Newark, NJ, USA.; Biswas A; Department of Neurosurgery, Westchester Medical Center at New York Medical College, Valhalla, NY, USA.; Clarençon F; Department of Neuroradiology, Pitié-Salpêtrière Hospital, Paris, France.; GRC BioFast, Sorbonne University, Paris VI, Paris, France.; Elhorany M; Department of Neuroradiology, Pitié-Salpêtrière Hospital, Paris, France.; GRC BioFast, Sorbonne University, Paris VI, Paris, France.; Neurology Department, Faculty of Medicine, Tanta University, Tanta, Egypt.; Premat K; Department of Neuroradiology, Pitié-Salpêtrière Hospital, Paris, France.; GRC BioFast, Sorbonne University, Paris VI, Paris, France.; Valente I; UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Florence, Italy.; Pedicelli A; UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Florence, Italy.; Filipe JP; Department of Diagnostic and Interventional Neuroradiology, Centro Hospitalar Universitário do Porto, Porto, Portugal.; Varela R; Department of Diagnostic and Interventional Neuroradiology, Centro Hospitalar Universitário do Porto, Porto, Portugal.; Quintero-Consuegra M; Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA.; Gonzalez NR; Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA.; Möhlenbruch MA; Sektion Vaskuläre und Interventionelle Neuroradiologie, Universitätsklinikum Heidelberg, Heidelberg, Germany.; Jesser J; Sektion Vaskuläre und Interventionelle Neuroradiologie, Universitätsklinikum Heidelberg, Heidelberg, Germany.; Costalat V; Department of Neuroradiology, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France.; Ter Schiphorst A; Department of Neurology, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France.; Yedavalli V; INSERM U1254, IADI, Université de Lorraine, Vandoeuvre-les-Nancy, France.; Harker P; Department of Neurology, University of Cincinnati Medical Center, Cincinnati, OH, USA.; Aziz Y; Department of Neurology, University of Cincinnati Medical Center, Cincinnati, OH, USA.; Gory B; Department of Interventional Neuroradiology, Nancy University Hospital, Nancy, France.; INSERM U1254, IADI, Université de Lorraine, Vandoeuvre-les-Nancy, France.; Stracke CP; Department of Radiology, Interventional Neuroradiology Section, University Medical Center Münster, Münster, Germany.; Hecker C; Department of Neurology and Neurosurgery, Christian Doppler Clinic, Paracelsus Medical University, Salzburg, Austria.; Kadirvel R; Department of Neurological Surgery and Radiology, Mayo Clinic, Rochester, MN, USA.; Killer-Oberpfalzer M; Department of Neurology and Neurosurgery, Christian Doppler Clinic, Paracelsus Medical University, Salzburg, Austria.; Griessenauer CJ; Department of Neurology and Neurosurgery, Christian Doppler Clinic, Paracelsus Medical University, Salzburg, Austria.; Thomas AJ; Cooper Neurological Institute, Cooper University Hospital, Cooper Medical School of Rowen University, Camden, NJ, USA.; Hsieh CY; Neurology Department, Sin-Lau Hospital, Tainan, Taiwan.; Liebeskind DS; UCLA Stroke Center and Department of Neurology Department, University of California, Los Angeles, Los Angeles, CA USA.; Alexandru Radu R; Department of Neuroradiology, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France.; Alexandre AM; UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Florence, Italy.; Tancredi I; Department of Radiology, Hôpital Civil Marie Curie, Charleroi, Belgium.; Faizy TD; Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.; Fahed R; Division of Neurology, Department of Medicine, The Ottawa Hospital, Ottawa Hospital Research Institute and University of Ottawa, Ottawa, ON, Canada.; Weyland C; Sektion Vaskuläre und Interventionelle Neuroradiologie, Universitätsklinikum Heidelberg, Heidelberg, Germany.; Lubicz B; Department of Diagnostic and Interventional Neuroradiology, Erasme University Hospital, Brussels, Belgium.; Patel AB; Neuroendovascular Program, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.; Pereira VM; Neurovascular Centre, Divisions of Therapeutic Neuroradiology and Neurosurgery, St. Michael's Hospital, University of Toronto, ON, Canada.; Guenego A; Department of Diagnostic and Interventional Neuroradiology, Erasme University Hospital, Brussels, Belgium.

Publisher: SAGE Publications Ltd Country of Publication: England NLM ID: 101688446 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2396-9881 (Electronic) Linking ISSN: 23969873 NLM ISO Abbreviation: Eur Stroke J Subsets: MEDLINE

Alexandre AM; UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A.Gemelli IRCCS, Roma, Italy. andrea.alexandre@policlinicogemelli.it.; Scarcia L; Neuroradiology Unit, Henri Mondor Hospital, Creteil, France.; Clarençon F; Department of Neuroradiology, Pitié-Salpêtrière Hospital, Sorbonne University, APHP, 47, Bd de l'Hôpital, 75013, Paris, France.; Sorbonne University, Paris, France.; Camilli A; Università Cattolica del Sacro Cuore, 00168, Roma, Largo Agostino Gemelli, Italy.; Bartolo A; Diagnostic and Therapeutic Neuroradiology Unit, IRCCS INM Neuromed, 86077, Isernia, Italy.; Incandela F; UOC Neuroradiologia diagnostica ed interventistica, Arnas Civico Palermo, Italy.; Mele DA; Unit of Otorhinolaryngology, Fondazione Policlinico Universitario A.Gemelli IRCCS, 00168, Rome, Italy.; Rigante M; Unit of Otorhinolaryngology, Fondazione Policlinico Universitario A.Gemelli IRCCS, 00168, Rome, Italy.; Natola M; Unit of Vascular Surgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168, Rome, Italy.; Valente I; UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A.Gemelli IRCCS, Roma, Italy.; D'Argento F; UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A.Gemelli IRCCS, Roma, Italy.; Galli J; Università Cattolica del Sacro Cuore, 00168, Roma, Largo Agostino Gemelli, Italy.; Unit of Otorhinolaryngology, Fondazione Policlinico Universitario A.Gemelli IRCCS, 00168, Rome, Italy.; Tshomba Y; Università Cattolica del Sacro Cuore, 00168, Roma, Largo Agostino Gemelli, Italy.; Unit of Vascular Surgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168, Rome, Italy.; Pedicelli A; UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A.Gemelli IRCCS, Roma, Italy.; Università Cattolica del Sacro Cuore, 00168, Roma, Largo Agostino Gemelli, Italy.

Publisher: Springer Heidelberg Country of Publication: Germany NLM ID: 101526693 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1869-1447 (Electronic) Linking ISSN: 18691439 NLM ISO Abbreviation: Clin Neuroradiol Subsets: MEDLINE