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Variability of surface and center position radiation dose in MDCT: Monte Carlo simulations using CTDI and anthropomorphic phantoms

The larger coverage afforded by wider z-axis beams in multidetector CT (MDCT) creates larger cone angles and greater beam divergence, which results in substantial surface dose variation for helical and contiguous axial scans. This study evaluates the variation of absorbed radiation dose in both cyli...

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Главные авторы: Zhang, Di, Savandi, Ali S., Demarco, John J., Cagnon, Chris H., Angel, Erin, Turner, Adam C., Cody, Dianna D., Stevens, Donna M., Primak, Andrew N., McCollough, Cynthia H., McNitt-Gray, Michael F.
Формат: Artigo
Язык:Inglês
Опубликовано: American Association of Physicists in Medicine 2009
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Online-ссылка:https://ncbi.nlm.nih.gov/pmc/articles/PMC2736750/
https://ncbi.nlm.nih.gov/pubmed/19378763
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1118/1.3078053
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