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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Detalhes bibliográficos
Main Authors: 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.
Formato: Artigo
Idioma:Inglês
Publicado em: American Association of Physicists in Medicine 2009
Assuntos:
Radiation Measurement Physics
Acesso em linha: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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