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Research on Dose Reduction During Computed Tomography Scanning by CARE kV System and Bismuth

전산화 단층검사 시 Bismuth와 CARE kV System을 이용한 선량 저감화에 대한 연구

  • 곽영곤 (전북대학교병원 영상의학과) ;
  • 김종일 (전북대학교 과학학과) ;
  • 정성표 (전북대학교병원 영상의학과)
  • Received : 2014.05.08
  • Accepted : 2014.06.17
  • Published : 2014.08.28

Abstract

The purpose of this study is to compare the reduction of the dose radioactivity by CARE kV with that of the Bismuth shielding. First, CT was performed with transparent materials, including a Bismuth shielder which is a well-known material for decreasing the dose of radiation. Moreover, we have estimated and compared the affects of the reduction of dose on eye lens, thyroid, breast and genitals. These steps aim to compare reactions with and without the application of the Rando phantom with PLD as well as with CARE kV or not. As a result, during the Brain angio scan, the dose of CARE kV set inspection test methods showed the least dose. Depending on whether we use CARE kV, which showed the effect of dose reduction by 63%. During the Carotid angio scan, the dose was increased by 13% by how to set CARE kV+Bismuth. During the Cardiac angio scan, which showed the effect of dose reduction by 31% by how to set CARE kV+Bismuth. During the Lower extremity angio scan, the dose was measured least by how to set up the whole Bismuth. Compared with CARE kV set of test methods, which showed the effect of dose reduction by 9%.

Keywords

CARE kV;Bismuth;Dose Reduction

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