Comparative studies of the sensitivities of sparse and full geometries of Total-Body PET scanners built from crystals and plastic scintillators

Meysam Dadgar; Szymon Parzych; Jakub Baran; Neha Chug; Catalina Curceanu; Eryk Czerwiński; Kamil Dulski; Kavya Elyan; Aleksander Gajos; Beatrix Hiesmayr; Łukasz Kapłon; Konrad Klimaszewski; Paweł Konieczka; Grzegorz Korcyl; Tomasz Kozik; Wojciech Krzemień; Deepak Kumar; Szymon Niedźwiecki; Domonik Panek; Eleną Perez del Rio; Lech Raczyński; Sushil Sharma; Shivani; Roman Shopa; Magdalena Skurzok; Ewa Stępień; Faranak. Tayefi Ardebili; Keyvan. Tayefi Ardebili; Stefaan. Vandenberghe; Wojciech. Wiślicki; Paweł. Moskal

arXiv · 2304.05834

Comparative studies of the sensitivities of sparse and full geometries of Total-Body PET scanners built from crystals and plastic scintillators

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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

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Meysam Dadgar, Szymon Parzych, Jakub Baran, Neha Chug, Catalina Curceanu, Eryk Czerwiński, Kamil Dulski, Kavya Elyan, Aleksander Gajos, Beatrix Hiesmayr, Łukasz Kapłon, Konrad Klimaszewski, Paweł Konieczka, Grzegorz Korcyl, Tomasz Kozik, Wojciech Krzemień, Deepak Kumar, Szymon Niedźwiecki, Domonik Panek, Eleną Perez del Rio, Lech Raczyński, Sushil Sharma, Shivani, Roman Shopa, Magdalena Skurzok, Ewa Stępień, Faranak. Tayefi Ardebili, Keyvan. Tayefi Ardebili, Stefaan. Vandenberghe, Wojciech. Wiślicki, Paweł. Moskal. 2023-04-12. Comparative studies of the sensitivities of sparse and full geometries of Total-Body PET scanners built from crystals and plastic scintillators. https://arxiv.org/abs/2304.05834

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