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KMID : 0357520150380010051
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Journal of Radiological Science and Technology
2015 Volume.38 No. 1 p.51 ~ p.61
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Basic Principles of CT Dose Index and Understanding of CT Parameter for Dose Reduction Technique
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Kim Jung-Su
Kim Jung-Min
Kwon Soon-Mu
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Abstract
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Computed tomography(CT) using radiation have potential risks. All medical radiographic examinations should require the justification of medical imaging examinations and optimization of the image quality and radiation exposure. The CT examination was higher radiation dose then general radiography. Especially pediatric CT examinations need to great caution of radiation risk. Because of pediatric patient was more sensitive of radiation exposure. Therefore, physician should consider the knowledge of CT radiation exposure indicator information for reduce a needless radiation exposure. This article was aim to understanding of CT exposure indicator, size-specific dose estimates by American Association of Physicists in Medicine (AAPM) report 204, XR 25 and understanding of CT dose reduction technique.
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KEYWORD
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SSDE, XR25, CTDIvol, Dose, Computed Tomography
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