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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: | , , , , , , , , , , |
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| Формат: | Artigo |
| Язык: | Inglês |
| Опубликовано: |
American Association of Physicists in Medicine
2009
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| Предметы: | |
| 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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