몬테칼로 기법을 이용한 CBCT의 인체 내 장기의 흡수선량 평가

• 영문명: Assesment of Absorbed Dose of Organs in Human Body by Cone Beam Computed Tomography using Monte Carlo Method
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 김종보(Kim Jong-Bo) 임인철(Im In-Chul) 박은태(Park Eun-Tae)
• 간행물 정보: 『방사선기술과학』방사선기술과학 제41권 제3호, 215~221쪽, 전체 7쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2018.06.30

영문 초록

Abstract Cone beam Computed Tomography(CBCT) is an increasing trend in clinical applications due to its ability to increase the accuracy of radiation therapy. However, this leaded to an increase in exposure dose. In this study, the simulation using Monte Carlo method is performed and the absorbed dose of CBCT is analyzed and standardized data is presented. First, after simulating the CBCT, the photon spectrum was analyzed to secure the reliability and the absorbed dose of the tissue in the human body was evaluated using the MIRD phantom. Compared with SRS-78, the photon spectrum of CBCT showed similar tendency, and the average absorbed dose of MIRD phantom was 8.12 ~ 25.88 mGy depending on the body site. This is about 1% of prescription dose, but dose management will be needed to minimize patient side effects and normal tissue damage.

목차

Ⅰ. 서 론

Ⅱ. 대상 및 방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

키워드

콘빔전산화단층촬영 몬테칼로 스펙트럼 MIRD팬텀 흡수선량 CBCT Monte Carlo Spectrum MIRD Phantom Absorbed Dose