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Radiation Protection Dosimetry Advance Access originally published online on November 21, 2007
Radiation Protection Dosimetry 2008 129(4):463-468; doi:10.1093/rpd/ncm463
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© The Author 2007. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

The development of a diagnostic reference level on patient dose for CT examination in Korea

PyongKon Cho1,5, BoKyung Seo1, TaeKyu Choi1, JangSeob Kim1, YouHyun Kim2, JongHak Choi2, YuWhan Oh3, KiHyun Kim4,5 and SunUng Kim5,*

1 Department of Diagnostic Radiology, Ansan Hospital, Korea University Medical Center, Ansan, Korea
2 Department of Radiologic Science, College of Health Science, Korea University, Seoul, Korea
3 Department of Diagnostic Radiology, Anam Hospital, Korea University Medical Center, Seoul, Korea
4 Divisions of Medical Sensor, Samil-Pharm. Co., Seoul 137-061, Korea
5 Department of Display and Semiconductor Physics, Korea University, Chungnam 339-700, Korea

* Corresponding author: ksu45112{at}chol.com

Received August 24, 2007, amended October 7, 2007, accepted October 11, 2007

The purpose of this research is to develop a diagnostic reference level for computed tomography (CT) suitable for Korean medical purposes. The direction of CT application and details on patient dose were investigated by survey, and the dose measurement is targeted in general hospitals registered with the Korean Hospital Association. The dose measurement was done with head and body phantom, and an accurate dosimeter was utilised in medical institutions that participated in the survey. The survey and dose measurements on the patient dose showed that the 75th percentiles in the distribution of weighted CT dose index (CTDIw) were 50.5 and 45.4 mGy for the head and 14.4 and 25.30 mGy for the body portions, respectively. Based on these research data, the target patient doses that are believed to be achievable for CT examination in Korean circumstances are about 48 ± 4 mGy in the head and 20 ± 8 mGy in the body.


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J. Choi, S. Cha, K. Lee, D. Shin, J. Kang, Y. Kim, K. Kim, and P. Cho
THE DEVELOPMENT OF A GUIDANCE LEVEL FOR PATIENT DOSE FOR CT EXAMINATIONS IN KOREA
Radiat Prot Dosimetry, October 28, 2009; (2009) ncp236v1.
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