디지털유방촬영에서 Geant4-GATE를 이용한 산란선의 영향분석과 감소방안에 관한 연구

• 영문명: Analysis of Scatter Ray Distribution Using GEANT4-GATE Simulation and Effectiveness of Silicone Pad in Digital Mammography
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 김명수(Myeong-soo Kim) 김영근(Young-kuen Kim) 장영일(Young-Il Jang)
• 간행물 정보: 『방사선기술과학』방사선기술과학 제42권 제3호, 175~180쪽, 전체 6쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2019.06.30

영문 초록

In this study, we have researched the effectiveness of silicone pad. A distribution of scatter ray in mammography was evaluated using Monte-Carlo (MC) simulation technique and then a silicone pad was applied to remove the scatter ray for improving image quality. Molybdenum target and Molybdenum filter combination made a difference of 59.8% to a number of photon at 17.5 keV. On the other hand, Tungsten target and Rhodium filter showed a variation of 24.5% at 20 keV. Mean 68 of SNR was increased in Selenia and mean 1.04 of SNR was raised in Senographe. Silicone pad was significantly effective to reduce the scatter ray that was generated by primary X-ray. It can decrease an absorption rate of scatter ray to patient body and whilst it improve the image quality from increasing SNR.

목차

Ⅰ. 서 론

Ⅱ. 대상 및 방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

키워드

Digital Mammography Monte-Carlo simulation Scatter ray Silicone pad Signal to noise ratio(SNR) 디지털 유방촬영 몬테카를로 시뮬레이션 산란선 실리콘 패드 신호 대 잡음비