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

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.

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