Low Dose CT Colonography(LDCTC)를 이용한 Automatic Exposure Controll(AEC)와 Beam Collimation의 변화에 따른 유용성 평가와 Effective Dose의 평가치에 대한 연구

• 영문명: A study on efficiency of Effective Dose with Using Automatic Exposure Controller and Beam collimation in Low Dose CT Colonography
• 발행기관: 대한CT영상기술학회
• 저자명: 여상근(Sang Geun Yeo) 정한별(Han Byeol Jeong) 대창민(Chang Min Dae) 민관홍(Kwan Hong Min) 김성룡(Seong Ryong Kim)
• 간행물 정보: 『대한CT영상기술학회지』대한전산화단층기술학회지 제10권 제1호, 107~111쪽, 전체 5쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2008.04.30

영문 초록

Purpose To considerate the efficiency of Automatic Exposure Controller(AEC) and Beam Collimation with the value of Effective Dose obtained with the alteration of Automatic Exposure Controller(AEC) and Beam Collimation. Materials and methods 50 out-patients (Male:36, Female:14, mean age:45 years) underwent Low Dose CT Colonography with 16 MDCT from 1st June 2007 to 31th July 2007 were selected. The Effective Dose was produced with the alteration of DoseRight Automatic Current Selector(ACS) & DoseRight D-Dose modulation(D-DOM), Beam Collimation in same patients. Results On the assumption that Effective Dose without AEC is 100%, 8% was decreased with only ACS, 9% was declined with D-DOM, and 16% was decreased with using ACS & D-DOM. On the same condition, 8% was decreased with the Beam Colliniation increased double. Conclusion 8%~16% of Effective Dose was decreased with AEC Program(ACS, D-DOM) and Beam Collimation. Although 30%-40% of decrease effectiveness was not obtained like the previous papers about dose, the use of Automatic Exposure Controller and Beam Collimation decrease effective dose. The use of AEC and Beam Collimation maintain the high quality of images and extend the tube life time of CT modality.

목차

Abstract

I. 서론

II. 대상 및 방법

III. 결과

IV. 고찰

V. 결론

참고문헌

키워드

Automatic Exposure Controller(AEC) Beam Collimation ACS D-DOM Effective Dose