Journal of the Korean Society of Radiology (한국방사선학회논문지)

The Korean Society of Radiology (한국방사선학회)
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Radiation Dose Calculation using MIRD TYPE PHANTOM in the Surrounding Organs during Brachytherapy of Breast Cancer

유방암의 근접치료 시 수학적 모의피폭체를 이용한 인접장기의 선량평가

  • Park, Eun-tae (Department of Radiation Oncology, Busan Paik Hospital, Inje University) ;
  • Kim, Jung-hoon (Department of Radiological Science, College of Health Sciences, Catholic University of Pusan) ;
  • Im, In-chul (Department of Radiological Science, Dongeui University)
  • 박은태 (인제대학교 부산백병원 방사선종양학과) ;
  • 김정훈 (부산가톨릭대학교 방사선학과) ;
  • 임인철 (동의대학교 방사선학과)
  • Received : 2016.05.26
  • Accepted : 2016.06.30
  • Published : 2016.06.30
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Abstract

This study was fulfilled to evaluate the absorbed dose of breast and adjacent organs using MIRD type phantom in brachytherapy of breast cancer. The absorbed dose was analyzed assuming left or right breast is source organ which is $^{103}Pd$ or $^{192}Ir$. As a result, $^{192}Ir$ dose is higher than $^{103}Pd$ in source organ and also in contralateral breast. Particularly, significant adjacent organs are lung, liver, heart and contralateral breast in brachytherapy of breast cancer.

본 연구는 유방암의 근접치료 시 수학적 모의피폭체를 이용하여 유방 및 인접장기의 선량을 평가하고자 하였다. 좌측 유방과 우측 유방을 선원으로 설정하여 $^{192}Ir$과 $^{103}Pd$ 핵종에 대한 흡수선량을 분석하였다. 그 결과 선원 장기에 대한 선량은 $^{192}Ir$이 $^{103}Pd$에 비해 높은 흡수선량을 보였으며, 반대측 유방의 선량도 $^{192}Ir$이 높게 나타났다. 또한 유방암의 근접치료 시 특히 유의해야 할 인접장기는 폐, 간, 심장, 반대측 유방으로 평가되었다.

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