부산대학교 도서관

Rojas, Á.G.; Martínez, A.V.; Benítez, P.R.; Estébanez, S.A.; Moreno, E.V.; Barrios, A.A.; de Pablo, J.C.L.; de Morales, A.M.; Antonova, A.M.; Colombina, A.B.; Diezhandino, M.G.; Ávila, C.M.C.; Gómez, J.R.; Ramos, M.L.

In: Nefrologia. (Nefrologia, 1 May 2023, 43(3):302-308)

Carriazo, S.; González-Parra, E.; Ortiz, A.; Aparicio-Madre, M.I.; Del Río-Gallegos, F.; Tornero-Molina, F.; Gil-Casares, B.; Fernández-Lucas, M.; Paraiso-Cuevas, V.; Marques-Vidas, M.; Alcázar-Arroyo, R.; Martins-Muñoz, J.; Sánchez-Villanueva, R.; Gutierrez-Martínez, E.; Martínez-Rubio, M.P.; Diezhandino, M.Á.G.; Ferrero, M.L.R.; Estebanez, S.A.; Mendiola, N.R.; Domínguez, M.D.; Triviño, S.E.; Vion, V.B.; Martín, C.J.; Rubio, A.B.; Gutierrez, R.S.; Melgar, Á.A.; Román, L.E.; Perez, J.M.P.; Sobrino, B.S.; Carratalá, R.L.; Calvo, J.A.H.; Flores, I.P.; Fructuoso, A.I.S.; Caro-Espada, P.J.; Solís, E.G.; Martín-Cleary, C.; Verde, A.R.; Perez, J.H.; Cuadrado, G.B.; González, M.G.; Perpen, A.F.; Carro, C.B.; Miguel, P.M.; Barrio, M.F.M.; Bouarich, H.; Fernández, M.P.; Vergara, E.G.; Juárez, G.M.F.; Valcarce, E.G.; Ribera, A.T.; Berrón, J.C.H.; Nieto, M.T.N.; Alcaraz, A.C.; Molina, F.T.; Casanova, B.G.-C.; Estevez, E.B.; Cuevas, V.P.; García, J.B.; Perez, A.G.; Prestel, V.S.; Ortiz, P.D.S.; Carrillo, R.E.; Ojanguren, M.C.H.; Herrero, M.D.C.J.; Alexandru, S.; Saico, S.E.P.; Hernández, R.S.; González-Mariño, R.Z.; Jimenez, L.R.-O.; Gurpide, B.D.; Cicero, E.R.; Sierra, C.A.; Lillo, R.D.; Yagüe, M.D.; Alonso, D.J.V.; Gota Ángel, R.; Guajardo, A.S.; Martín, C.J.; Perez, J.H.; Czerpak, K.R.F.; Abreu, Á.A.M.; Lorenzo, A.B.; Sanz, J.N.; Ares, M.T.V.; Gasch, S.C.; Rubio, M.D.P.M.; Villanueva, P.N.E.; Alvarado, J.R.B.; Santos, A.M.B.; Matías, C.G.; Hernández, P.M.; Sainz, M.S.

In: Nephrology Dialysis Transplantation. (Nephrology Dialysis Transplantation, 1 November 2022, 37(11):2253-2263)

Manuel Sousa J; Hepatology Department, Hospital Universitario Virgen del Rocío, Sevilla, Sevilla, Spain.; Vergara M; Hepatology Unit, Digestive Disease Department, Parc Taulí Sabadell Hospital Universitari, Sabadell, Barcelona, Spain, CIBERehd, Instituto Carlos III, Madrid, Spain.; Pulido F; HIV Unit, Hospital Universitario 12 de Octubre, imas12, Universidad Complutense de Madrid (UCM), Madrid, Spain.; Sánchez Antolín G; Hepatology Department, Hospital Universitario Río Hortega, Valladolid, Valladolid, Spain.; Hijona L; Hepatology Department, Hospital Universitario Araba, Vitoria-Gasteiz, Álava, Spain.; Carnicer F; Hepatology Department, Hospital General Universitario de Alicante, Alicante, Alicante, Spain.; Rincón D; Hepatology Department, Hospital General Universitario Gregorio Marañón, CIBERehd and (UCM), Madrid, Spain.; Salmerón J; Hepatology Department, Complejo Hospitalario Universitario de Granada, Granada, Granada, Spain.; Mateos-Muñoz B; Hepatology Department, Hospital Universitario Ramón y Cajal, Madrid, Spain.; Jou A; HIV Clinical Unit, Internal Medicine Department and Fundació de la Lluita contra la SIDA, Hospital Universitari Germans Trias i Pujol, Universitat Autònoma de Barcelona, Barcelona, Spain.; Polo-Lorduy B; Hepatology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain.; Rubín Á; Hepatology Department, Hospital Universitario y Politécnico de La Fe, Valencia, Valencia, Spain.; Escarda A; Hepatology Department, Hospital Universitario Son Espases, Palma de Mallorca, Spain.; Aguilar P; Digestive System Clinical Unit, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Universitario Reina Sofía/Córdoba University, Córdoba, Spain.; Aldámiz-Echevarría T; Infectious Diseases-HIV, Hospital General Universitario Gregorio Marañón (IiSGM), Madrid, Madrid, Spain.; García-Buey L; Hepatology Department, Hospital Universitario de La Princesa, Madrid, Spain.; Carrión JA; Liver Section, Gastroenterology Department, Hospital del Mar, IMIM (Hospital del Mar Medical Research Institute), UAB (Universitat Autonoma de Barcelona) Barcelona, Spain.; Hernández-Guerra M; Hepatology Department, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain.; Chimeno-Hernández S; Hepatology Department, Hospital Arnau de Vilanova, Valencia, Valencia, Spain.; Espinosa N; Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Infectious Diseases Research Group, Institute of Biomedicine of Seville (IBiS), University of Seville/CSIC,Sevilla, Spain.; Morillas RM; Liver Section, Department of Gastroenterology, Hospital Universitari Germans Trias i Pujol, IGTP, Badalona, Barcelona, Spain, and CIBEREHD.; Andrade RJ; Unidad de Gestión Clínica de Aparato Digestivo, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Virgen de la Victoria, Universidad de Málaga, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas CIBERehd, Málaga, Spain.; Delgado M; Hepatology Department, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain.; Gallego A; Hepatology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Barcelona, Spain.; Magaz M; Hepatology Department, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain.; Moreno-Planas JM; Digestive System Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain.; Estébanez Á; Hepatology Department, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain.; Rico M; Infectious Diseases Unit, Hospital Universitario La Paz, Madrid, Spain.; Menéndez F; Hepatology Department, Hospital Universitario Basurto, Bilbao, Vizcaya, Spain.; Sampedro B; Hepatology Department, Hospital Galdakao, Galdakao, Vizcaya, Spain.; Morano L; Infectious Diseases Unit, Hospital Universitario Álvaro Cunqueiro, Vigo, Pontevedra, Spain.; Izquierdo S; Hepatology Department, Hospital Clínico San Carlos, Madrid, Spain.; Zozaya JM; Hepatology Department, Complejo Hospitalario de Navarra, Pamplona, Navarra, Spain.; Rodríguez M; Liver Unit, Division of Gastroenterology & Hepatology. Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain.; Morán-Sánchez S; Hepatology Department, Hospital General Universitario Santa Lucía, Cartagena, Murcia, Spain.; Lorente S; Hepatology Department, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Zaragoza, Spain.; Martín-Granizo I; Department of Gastroenterology, Hospital Universitario Álvaro Cunqueiro, Vigo, Pontevedra, Spain.; Von-Wichmann MÁ; Infectious Diseases Unit, Hospital Universitario Donostia, Donostia, Gipuzkoa, Spain.; Delgado M; Infectious Diseases Unit, Hospital Regional Universitario de Málaga, Málaga, Spain.; Manzanares A; AbbVie Spain, S.L.U., Madrid, Spain.

Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE

Bello, A.R.; Bucalo, L.; Estébanez, S.A.; Martínez, A.V.; Núñez, D.B.; Lozano, C.Y.; De José, A.P.; López-Gómez, J.M.

In: Clinical Kidney Journal. (Clinical Kidney Journal, June 2016, 9(3):374-380)

Esteban, S.A.; Urquía-Grande, E.; de Silva, A.M.; Pérez-Estébanez, R.

In: Cuadernos de Gestion. (Cuadernos de Gestion, 2022, 22(1):193-213)

Blanco-Colino, R.; Lee, S.; Kamarajah, S.K.; Vasko, P.; Kuiper, S.Z.; Farina, V.; Chapman, S.J.; Drake, T.M.; Gavagna, L.; Pasquali, S.; Pata, F.; Pellino, G.; de la Rosa-Estadella, M.; Stellingwerf, M.E.; Stijns, R.C.H.; Borrellas, A.; Golding, D.; Ngaage, M.; Van Tol, R.R.; de Groof, J.; de Wilt, H.; Bemelman, W.A.; McNamee, L.; Espin-Basany, E.; Emre Baki, B.; Gecim, I.E.; Can Tatar, O.; Bach, S.; Bhangu, A.; Bresges, K.; Burke, J.; Claireaux, H.A.; Fearnhead, N.; Fitzgerald, J.E.; Gallagher, S.; Glasbey, J.C.; Gundogan, B.; Harrison, E.M.; Hernon, J.; Khatri, C.; Kong, C.Y.; Lyons, A.; Mohan, M.; Morton, D.; Pinkney, T.D.; Arezzo, A.; Foppa, C.; Morino, M.; Rubbini, M.; Selvaggi, F.; Sensi, B.; Sica, G.; Orhalmi, J.; Naccari, P.; Sgrò, A.; Burger, B.H.C.M.; Fares, D.A.; Spijkerman, R.; van Elst, T.R.; Wiersema, R.; Stassen, L.P.S.; Rodriguez Garcia, R.; Özkan, B.B.; Tavuz, A.I.; Demirci, Z.S.; Baki, B.E.; Choi, P.J.; O'Sullivan, H.; Salman, M.; Simioni, A.; Colombo, F.; Turati, L.; Cazzola, F.E.; Gallo, G.; Perrotta, G.; Papandrea, M.; Naccari, P.M.; Menduni, N.; Rossi, E.; Chetta, N.; Romeo, F.; Giordano, F.; Randisi, B.; Curletti, G.; Kuiper, J.; Costa, A.; Marcos Rodrigo, A.; Sanchez, A.; Varo Muñoz, A.; Martinez Rios, C.E.; Aliseda-Jover, D.; Fernandez Nieto, D.; Alvarez Reyes, I.; Dominguez Rodriguez, L.M.; Hernandez Ros, M.I.; Esteban Sinovas, O.; Bartrina Soler, P.; Villarejo Campos, P.; Laguna Román, S.; Fontanet-Soler, S.; Raurich-Leandro, J.; Dominguez-Prieto, V.; Segura-Sampedro, J.J.; Alconchel-Gago, F.; Salazar-García, C.; Gezen, A.E.; Sahin, A.; Atasoy, H.; Yuksek, B.; Arslan, E.; Ozmen, B.B.; Sen, A.Y.; Erol, H.I.; Ucar, E.; Aktas, M.K.; Yurdaor, S.S.; Mermer, S.; Seyhan, U.; Tosun, V.; Gunaydin, Y.; Ekinci, Z.B.; Yazkan, Z.; Choi, J.; Yeoh, T.S.L.; Jones, C.S.; Venturini, S.; Saat, M.I.; Loo, J.; Pike, G.; Davies, S.C.; Kabariti, R.; Olivier, J.; Hurný, M.; Žebrák, R.; Machačová, A.; Schulzová, M.; Smolák, P.; Široká, M.; Palyzová, H.; Jaroš, J.; Dušek, T.; Šimáčková, B.; Bartoš, M.; Sotona, O.; Pös, M.; Karásek, D.; Higgins, P.; Hacking, S.; Arora, E.; Coughlan, G.; Palanivail, N.; Quill, S.; Zhang, A.A.; Malak, M.; Maan, D.S.; Cheema, J.; Goh, A.W.J.; Shamsul Badrin, A.K.; Guinness, F.; Howard James, N.; Neary, A.; Sebaoui, S.; Gilroy, D.; Petrov, G.; Craven, K.; MacDonald, A.; Redmond, A.; Brennan, D.; Roche, D.; O'Dwyer, M.; Collins, P.; Edwards, S.; Doyle, J.; Tiedt, L.; Arthurs, B.; O'Byrne, L.; Kiely, A.; Glynn, M.; Sproule, L.; Heaney, A.; Li Hi Shing, S.; Goh, W.; Al-Nasser, Z.; Al-Nasser, A.; Teh, J.W.; De Boni, D.; Goldin, E.; Ciccioli, E.; Vendramin, E.; Marchese, N.; Bruno, M.; Vinci, A.; Harder, G.; Morandi, V.; Magnoli, M.; Suppa, A.; Palmieri, A.; Martorana, M.; Sette, M.; Balagna, P.; Cruciani, C.; Corte, M.; Ciano, P.; Bagaglini, G.; Montuori, M.; Di Benedetto, L.; Arcudi, C.; Pezzuto, R.; Saraceno, F.; Milana, F.; Franceschilli, M.; Rizzi, A.; Sampietro, G.; Rampulla, V.; Bianco, F.; Boschetti, M.E.; Ghignone, F.; Bianchini, S.; Esposto, R.; Riva, L.; Riva, M.; Cannavò, M.; Arrigo, A.; Giavarini, L.; Colombo, E.M.; Trompetto, M.; Clerico, G.; Catalano, M.; Dosa, T.; El Mabruk, M.; Barone, V.; Pallara, E.; Pasqualoni, M.; Caudullo, G.; Mastandrea Bonaviri, G.N.; Muro, M.; Pistola, I.; Verardi, L.; Ferrara, D.; Gerardi, S.; Remore, L.M.; Belia, F.; Del Coco, F.; Larotonda, C.; Botrugno, E.M.; Cammarota, A.; Di Girolami, L.; Laterza, V.; Laurino, A.; Paolo, G.; Santocchi, P.; Puccioni, C.; Truma, A.; Giardino, F.R.; Giuffrida, A.; Ripa, M.; Cautiero, R.; Patturelli, M.; Capozzolo, A.; Selvaggi, L.; Facchiano, A.; Milazzo, L.F.; Papazachariou, S.K.; Pattapola, V.; Anania, G.; Feo, C.; Bellinato, M.; Priani, P.; Zigiotto, D.; Troia, A.; Vable, T.; Piran, G.; Targa, S.; Pulpito, S.; Tagariello, F.; Fasano, A.; Anconelli, D.; Castiglione, F.; Tognolo, L.; Lopez, G.; Campion, A.; Tarantino, M.; Sacco, R.; Sammarco, G.; Palmisano, S.; Giacca, M.; Rocco, I.; Bellio, G.; Favero, A.; Raimondi, P.; Pantalone, M.R.; De Nardi, P.; Notarnicola, M.; Picciariello, A.; Licari, L.; Parinisi, Z.; Fazzotta, S.; Ciciliot, M.; Reggiani, L.; Mariani, F.; Aonzo, P.; Checcacci, P.; Montanelli, P.; Guerra, F.; Skalamera, I.; Staderini, F.; Grandi, S.; Nelli, T.; de Boer, D.V.; van der Pool, A.E.M.; Janssen, T.L.; El-Atmani, S.; van Verschuer, V.M.T.; Poelman, M.; Dronkers, W.J.; van Steensel, L.; Toorenvliet, B.R.; Duinhouwer, L.E.; Vermaas, M.; Ter Bruggen, F.F.J.A.; Hogendoorn, W.; van der Harst, E.; van Rijckevorsel, V.A.J.I.M.; Bayoumy, A.B.; Lap, C.R.; Gooszen, J.A.H.; Abdulrahman, N.; de Roy van Zuidewijn, D.; de Groof, E.J.; Zijlmans, J.L.; van Dalen, A.S.H.M.; Bos, K.; Musters, G.D.; Looijen, R.C.; Fliers, J.M.; Oostendorp, S.E.; Mosterd, C.M.; Blonk, L.; Jurgens, J.; Ribbink, M.E.; Boom, M.S.; Boersma, A.M.; Hidding, E.; Schmidt, P.A.; Mensink, G.; Graus, S.A.; Gastel, M.D.A.; Veenker, C.G.H.; Van Heumen, T.M.; Slieker, F.J.B.; Sedee, W.J.A.; Löwensteyn, Y.N.; Amelung, F.J.; de Guerre, L.E.V.M.; Nota, C.L.M.A.; Van Dijck, W.P.M.; van Wijnbergen, J.W.M.; Pronk, A.; Kip, M.; van der Zee, C.; Heiloo, S.; Muller, S.; Verboeket, B.; Oudman, T.S.; Zope, S.; Gilissen, V.; Gommers, J.; Cremers, D.; Van der Lubbe, M.; Smet, M.; Ter Weele, K.; de Bruin, M.; Geerlings, M.; Ter Horst, L.; Kerimova, N.; Pesser, N.; Heesakkers, H.; de Mees, T.; de Gooyer, J.M.; Willems, L.; Gawria, L.; Bonouvrie, D.; Harms, J.; Eggen, Y.; Hengeveld, E.; Smeets, H.J.; Hoffman, R.P.C.; Detmers Blom, F.P.N.; Van Bruggen, D.; Steup, W.H.; Gooiker, G.A.; Willems, Y.R.; van der Hoeven, A.C.; Vallve-Bernal, M.; Perez-Gandara, B.; Perez, J.L.; Caballero Rodriguez, E.; Perez Febles, M.; Protti Ruiz, G.P.; Hidalgo Pujol, M.; Alberti Delgado, P.; Gil Barrionuevo, E.; Anabitarte, O.; Caballero, L.; Poyato Nuñez, F.J.; Prado Perez, R.; de la Portilla de Juan, F.; Fulgencio Barbarin, J.; Elorza Echaniz, G.; Mitxelena Elosegi, L.; Delgado, A.T.; Marti Gelonch, L.; Gonzalez 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In: Colorectal Disease. (Colorectal Disease, 1 August 2018, 20(8):O215-O225)

Brisamar Estébanez; Chun-Jung Huang; María J. Cuevas

Frontiers in Endocrinology, Vol 15 (2024)

Arab, M.W.; Bahri, I.; Godoy, E.; Hilairet, M.; Estebanez, P.G.; Randi, S.A.

In: Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013, Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013. (Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013, 2013, :1119-1125)

Brisamar Estébanez; Chun-Jung Huang; Marta Rivera-Viloria; Javier González-Gallego; María J. Cuevas

Frontiers in Nutrition, Vol 9 (2022)

Brisamar Estébanez; José A. de Paz; María J. Cuevas; Javier González-Gallego

Frontiers in Physiology, Vol 9 (2018)

Digital.CSIC. Repositorio Institucional del CSIC
Consejo Superior de Investigaciones Científicas (CSIC)
instname
RUO. Repositorio Institucional de la Universidad de Oviedo
Universidad de Oviedo (UNIOVI)

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

In: Carreteras. (Carreteras, September 2004, 4(135):72-85)

Tunneling & Underground Space Technology. Nov2005, Vol. 20 Issue 6, p558-569. 12p.

Pinto-Silva, J.

In Journal of Terramechanics 1987 24(2):153-157