학술논문
Comparative studies of the sensitivities of sparse and full geometries of Total-Body PET scanners built from crystals and plastic scintillators
Document Type
Working Paper
Author
Dadgar, Meysam; Parzych, Szymon; Baran, Jakub; Chug, Neha; Curceanu, Catalina; Czerwiński, Eryk; Dulski, Kamil; Elyan, Kavya; Gajos, Aleksander; Hiesmayr, Beatrix; Kapłon, Łukasz; Klimaszewski, Konrad; Konieczka, Paweł; Korcyl, Grzegorz; Kozik, Tomasz; Krzemień, Wojciech; Kumar, Deepak; Niedźwiecki, Szymon; Panek, Domonik; del Rio, Eleną Perez; Raczyński, Lech; Sharma, Sushil; Shivani; Shopa, Roman; Skurzok, Magdalena; Stępień, Ewa; Ardebili, Faranak. Tayefi; Ardebili, Keyvan. Tayefi; Vandenberghe, Stefaan.; Wiślicki, Wojciech.; Moskal, Paweł.
Source
Subject
Language
Abstract
Background: Total-Body imaging offers high sensitivity, single-bed position, and low dose, but high construction costs limit worldwide utilization. This study compares existing and developing tomographs using plastic scintillators via simulations to propose a cost-efficient Total-Body PET scanner. Methods: Simulations of eight uEXPLORER tomographs with different scintillator materials, axial field-of-view, and detector configuration, and eight J-PET scanners with various field-of-view, plastic scintillator cross-sections, and layers were performed. Biograph Vision was also simulated. Two types of simulations were conducted with a central source and a water-filled phantom. Results: BGO crystal-based scanners showed the best sensitivity (350 cps/kBq at the center). Sparse geometry or LYSO crystals reduced sensitivity. J-PET design showed similar sensitivity to sparse LYSO detectors, with full body coverage and additional gain for brain imaging. Conclusion: The J-PET tomography system using plastic scintillators could be a cost-efficient alternative for Total-Body PET scanners, overcoming high construction costs while maintaining sensitivity