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Estimated Exposure Dose and Usage of Radiological Examination of the National Health Screening

국가건강검진의 방사선검사 이용량 및 피폭선량 추정

  • Gil, Jong Won (Graduate School of Health Biomedicine Convergence Chungbuk National University) ;
  • Park, Jong Hyock (College of Medicine, Chungbuk National University) ;
  • Park, Min Hui (Department of Health Informatics and Management, College of Medicine) ;
  • Park, Chan Young (Graduate School of Health Biomedicine Convergence Chungbuk National University) ;
  • Kim, So Young (Graduate School of Health Science Business Convergence, Chungbuk National University) ;
  • Shin, Dong Wook (Center for Health Promotion/Department of Family Medicine, Seoul National University Hospital) ;
  • Kim, Won Dong (Department of Radiation Oncology, College of Medicine, Chungbuk National University)
  • 길종원 (충북대학교 보건의생명융합학협동과정) ;
  • 박종혁 (충북대학교 의과대학) ;
  • 박민희 (충북대학교 의과대학 의료정보학 및 관리학교실) ;
  • 박찬영 (충북대학교 보건의생명융합학협동과정) ;
  • 김소영 (충북대학교 의생명과학경영융합대학원) ;
  • 신동욱 (서울대학교병원 가정의학과) ;
  • 김원동 (충북대학교 의과대학 방사선종양학과)
  • Received : 2014.05.30
  • Accepted : 2014.08.07
  • Published : 2014.09.30

Abstract

Korea conducts a national health screening program to improve and check-up on public health and in recent years, the screening usage has been increased. Given the increased screening usage for radiographic exams, this study predicts the frequency of using radiographic exams and the exposure dose. This study estimates the usage of radiographic exams by isolating radiographic exams from the 2011 analysis of the national health insurance corporation, and estimates the public exposure dose by applying each procedure's dose table from UNSCEAR 2008. As a result of the analysis, in the 2011 National Health Screening, the average exposure dose per person is assumed to be 0.57 mSv, and depending on the type of screening program from the radiographic exam, an examinee could be exposed to between 0.2 mSv and 11.081 mSv. The frequency of using radiographic exposure was found to be 16,005,914 and the exposure dose was 6,311.76 person-Sv. The most frequent exam is the Chest X-ray, which was performed 1,070,567 (69.17%), and the UGI has the highest exposure dose at 5,217.94 person-Sv (82.67%). The outcome is categorized based on gender and age, excluding those under 39 years old. In all age groups, the screening usage and exposure dose are higher in females than in males. In particular, females between 50 and 54 years old have the highest screening usage (1,674,787, 10.5%) and exposure dose (701.59 person-Sv, 11.1%). As UGI accounts for 82.76% of procedures, except when done for medical purposes, if the government supports a voluntary UGI exam (which includes the UGI exam in the National Screening Program) or abolishes it completely, as seen overseas, the cost-effectiveness and validity of the UGI exam, as well as the exposure dose from the National Screening Program will all decrease significantly.

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