Journal of Radiation Protection and Research

The Korean Association for Radiation Protection (대한방사선방어학회)
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A study on the utilization of CT equipments

전산화 단층촬영 장치의 이용 실태에 대한 조사

  • Cho, Pyong-Kon (Dept. of Diagnostic Radiology, Korea University Medical Center) ;
  • Oh, Yu-Whan (Dept. of Diagnostic Radiology, Korea University Medical Center) ;
  • Kim, Sung-Soo (Dept. of Radiologic Technology, College of Singu) ;
  • Choi, Jong-Hak (Dept. of Radiologic Technology, College of Health Sciences, Korea University) ;
  • Kim, You-Hyun (Dept. of Radiologic Technology, College of Health Sciences, Korea University)
  • 조평곤 (고려대학교 안암병원 진단방사선과) ;
  • 오유환 (고려대학교 안암병원 진단방사선과) ;
  • 김성수 (신구대학 방사선과) ;
  • 최종학 (고려대학교 병설 보건대학 방사선과) ;
  • 김유현 (고려대학교 병설 보건대학 방사선과)
  • Published : 2005.03.30
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Abstract

This study was conducted to investigate the patient exposure dose during a CT examination and the present position in utilization of the CT equipments. To this end Questionnaire were sent out to 278 medical facilities registered at Korea Hospital Association and replies of 161 medical facilities were analyzed. The results were as follows ; 1) The distribution of CT examination was. Brain 40.7%, Abdomen 27.8%, Chest 15.7%, Spine 4.8%, Pelvis 4.1%, PNS 3.2%, Facial bone 2.5% and Extremity 1.1% respectively. 2) The statistics for dose index according to each part of examination were Brain 38.0mGy, Abdomen 12.0mGy for adults : Brain 13.6mGy, Abdomen 6.2mGy for infant. Our surveyed dose index appeared lower than the IAEA recommends. 3) Most medical facilities have selected the parameters for radiographic exposure in the range of $100{\sim}120kVp,\;100{\sim}250mA\;and\;1{\sim}2$ seconds.

전산화 단층촬영검사 시 환자가 받는 피폭선량과 장치 이용 실태를 파악하기 위한 목적으로 대한병원협회에 등록된 전국의 278개 의료기관에 설문지를 발송하여 설문에 응답한 161개 의료기관의 자료를 분석하여 다음과 같은 결과를 얻었다. 1. 검사의 부위별 촬영분포는 Brain(40.7%), Abdomen(27.8%), Chest(15.7%), Spine(4.8%), Pelvis(4.1%), PNS(3.2%) Facial bone(2.5%), Extremity(1.1%)등으로 Brain검사가 가장 많았다. 2. 검사 부위별 선량지수에 대한 통계는 성인의 경우 Brain 38.0mGy, Chest 10.1mGy, Abdomen 12.0mGy, Pelvis 13.2mGy, PNS 27.5mGy, Facial bone 28.6mGy, Spine 26.0mGy, Extremity 13.5mGy이었고, 유아의 경우 Brain 13.6mGy, Abdomen 6.2mGy 이었다. 3. 검사부위별 촬영조건에 대한 통계는 관전압 $100kVp{\sim}120kVp$, 관전류 $100mA{\sim}250mA$, 조사시간은 1초${\sim}$2초를 가장 많이 사용하고 있었다.

Keywords

References

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