Coronary CT 검사시 SFOV 변화에 따른 환자선량 평가

• 영문명: Evaluation of Radiation Dose with Change of SFOV in Coronary CT Examination
• 발행기관: 대한CT영상기술학회
• 저자명: 남윤철(Yoon Chul Nam) 김부환(Boo Hwan Kim) 이민영(Min Young Lee) 신설경(Seol Kyung Shin) 김문찬(Moon Chan Kim) 한동균(Dong Kyoon Han)
• 간행물 정보: 『대한CT영상기술학회지』대한전산화단층기술학회지 제9권 제1호, 47~53쪽, 전체 7쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2007.04.30

영문 초록

Purpose The radiation dose in coronary study is high compared with other CT examination. Patient dose in CT is usually expressed in terms of the organ dose and effective dose. The purpose of this study is to evaluate patient organ dose and effective dose vary with scan fiend of view in coronary CT examination. Materials and Methods Organ dose was actually measured by using anthropomorphic phantom and Rapido-Photo-Luminescent(RPL) Glass. Effective dose measured by using ion chamber system. Results The survey on a patient dose showed that the organ dose was 98mGy in the heart part and 93mGy in the Lt. lung part and 63mGy in the Rt. lung part and 98mGy in the Lt. breast part and 75mGy in the Rt. breast part. Effective dose was 16.1mSv. Organ dose was decreased from 32.3% to 40.9% in used SS, S, M(SFOV) examination, compared to used L, LL(SFOV) examination. Effective dose was decreased 39.5% in used SS, S, M(SFOV) examination, compared to used L, LL(SFOV) examination. Conclusion As a conclusion, the radiation dose was very high dose in coronary study. Future research should be directed to identify the least amount of radiation required in CT scans to ensure that diagnostic performance is not significantly compromised.

목차

Abstract

Ⅰ. 목적

Ⅱ. 대상 및 방법

Ⅲ. 결과

Ⅳ. 고찰

Ⅴ. 결론

참고문헌

키워드

organ dose effective dose scan field of view anthropomorphic phantom Rapido-Photo-Luminescent(RPL) glass ion chamber