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J Radiat Prot > Volume 35(3);2010 > Article
Journal of Radiation Protection 2010;35(3):111.
우리나라의 두부 엑스선검사에서의 환자선량 권고량
A Study for Establishment of Diagnostic Reference Level of Patient Dose in Skull Radiography
Lee, Jung-Eun;Jeong, Jin-Baek;Lee, Hyun-Koo;Lim, Chun-Il;Son, Hye-Kyung;Jin, Hyun-Mi;Kim, Byung-Woo;Yang, Hyun-Kyu;Kim, Hyeog-Ju;Kim, Dong-Sup;Lee, Kwang-Yong;
Ionizing radiation is most widely used for X-Ray examination among all artificial radiation exposure, it takes up the largest proportion. Even in Korea, the medical exposure by diagnostic X-Ray examination takes up 17.4% of all radiation exposure. It takes up 92% even in artificial radiation exposure. There were 111,567 cases X-Ray radiography for skull diagnosis in 2007, which is 3% annual increase since 2004. Thus, It is need to establish the diagnostic reference level and the medical facilities as a diagnostic reference level to optimize radiation protection of the patients and to reduce the doses of X-ray. In this paper, we survey patient dose on skull radiography - collected from 114 medical facilities nationwide by using human phantom and glass dosimeter. When the patient dose for the skull radiography was measured and evaluated to establish the diagnostic reference level, 2.23 mGy was established for posterior-anterior imaging and 1.87 mGy for lateral imaging was established. The posterior-anterior skull radiography entrance surface dose of 2.23 is less than the guidance level of 5 mGy from the global organizations such as World Health Organization (WHO) and International Atomic Energy Agency (IAEA), and 1.87 mGy for the lateral skull imaging is less than the guidance level of 3 mGy, which is guided by the global organizations such as World Health Organization (WHO) and International Atomic Energy Agency (IAEA).
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