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KMID : 0357520100330030231
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Journal of Radiological Science and Technology
2010 Volume.33 No. 3 p.231 ~ p.237
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Survey of CT Practice and Collective Effective Dose Estimation
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Lee Man-Koo
Lim Cheong-Hwan
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Abstract
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Computed tomography (CT) has been established as an important diagnostic tool in clinical medicine and has become a major source of medical exposure. A nationwide survey regarding CT examinations was carried out in 2007. Thanks to the appeasement policy regulating the import of CT scanners, there are 1,825 CT scanners across the country as of the end of March 2010, which means that we have 36.8 CT scanners per one million people. The annual number of examinations was 3.29 million, the number of examinations per 1000 population was 68. The most part of examinations was abdomen and pelvis. and the collective effective dose was in these parts. The effective dose per one population was evaluated as 0.952 mSv.
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KEYWORD
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Computed Tomography, medical exposure, Collective effective Dose, DLP
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