The Journal of the Korea Contents Association (한국콘텐츠학회논문지)

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Radiation Dose during Fluoroscopy at the Organ from Extracorporeal Shock Wave Lithotripsy

체외충격파쇄석술에서 투시 시 주요 장기별 방사선 피폭선량

  • 문성호 (삼성서울병원 비뇨기과) ;
  • 정홍량 (한서대학교 방사선학과) ;
  • 임청환 (한서대학교 방사선학과)
  • Received : 2010.02.05
  • Accepted : 2010.05.03
  • Published : 2010.05.28
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Abstract

We measured the radiation exposure for 55 persons (male: 36, female: 19) who was diagnosed with kidney and ureter stones and received ESWL. The absorbed dose was measured at the organ which is expected to absorb relatively much radiation (kidney, bladder, liver). The radiation dose measurement voltage 80kVp, current of 5mA as a fixed model of the human body by using the Rando phantom with Radiophotoluminescent Glass Dosimeter. Absorbed dose was measured for two times (5 minute and 10 minute, each) and converted to effective dose. Mean number of treatment was 1.8 times (1~4) per patient was the mean time of radiation exposure533 seconds (248-2516). For the treatment of right renal stone, the effective dose of right kidney, left kidney, liver and bladder was 2.458mSv, 0.152mSv, 1.404 mSv and 0.019mSv, respectively. For the treatment of left renal stone, the effective dose of right kidney, left kidney, liver and bladder was 2.496mSv, 0.252mSv, 0.178 mSv, and 0.017mSv, respectively. For the treatment of distal ureter stone, the effective dose of right kidney, left kidney and bladder was 0.009mSv, 0.01mSv and 3.742mSv, respectively.

체외충격파쇄석술(Extracorporeal shock wave lithotripsy ; ESWL) 시 환자가 받는 방사선 피폭선량을 측정하기 위하여 신장 및 요관 결석으로 진단을 받은 총 55명(남:36명, 여:19명)을 대상으로 방사선피폭선량을 측정하였다. 측정 방법은 투시 관전압 80kVp, 관전류 5mA로 고정하여 인체 모형의 Rando Phantom과 형광유리 선량계를 사용하였으며, 주요 장기인 양측 신장, 방광, 간에 5분과 10분씩 각각 2회 흡수선량을 측정하여 유효선량으로 환산하였다. 환자 당 평균 시행 횟수는 1.8회(1~4)이었고, 평균 투시시간은 533초(248~2516)로 나타났다. 우측 신장결석 치료 시 우측 신장의 평균값은 2.458mSv, 좌측 신장은 0.152mSv, 간은 1.404mSv, 방광은 0.019mSv로 측정 되었고, 좌측 신장결석 치료 시 좌측 신장의 평균값은 2.496mSv, 우측 신장은 0.252mSv, 간은 0.178mSv, 방광은 0.017mSv이었으며, 하부요관 결석치료 시 방광에서의 평균값은 3.742mSv, 우측 신장은 0.009mSv, 좌측 신장은 0.01mSv로 유효선량이 측정 되었다.

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