Dose Evaluation Using Mathematical Simulation of Radiation Exposure Body in Mammography System

유방영상시스템에서 수학적 모의피폭체를 이용한 선량평가

  • Lee, Jinsoo (Department of Radiology, Inje University Haeundae Paik Hospital)
  • 이진수 (인제대학교 해운대백병원 영상의학과)
  • Received : 2014.04.22
  • Accepted : 2014.06.25
  • Published : 2014.06.30


Mammography is mostly performed by series projection on both breasts. While taking mammography, it is less than average glandular dose of 3 mGy which regulated. But mammography is exposed much more doses actually, due to additional or series projection. Also, it is difficult to recognize around organ dose except exposed breast. Using mathematical simulation of radiation exposure body in mammography, we studied around organ dose distribution by changing thickness(25, 30, $50{\mu}m$) of filter and relative absorption dose rate which set on basis of exposed breast. as a result, when setting of basis of exposed breast, dose of opposite breast is more affected approximately from 79.26 to 86.31%. when using $25{\mu}m$ of filter thickness than $30{\mu}m$, $50{\mu}m$ of filter thickness in Mo/Mo, W/Rh combination which used actually, absorbed dose rates for opposite breast and around organ were low.


mammography;Mathematical simulation of radiation exposure body;organ dose


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