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복부 단순촬영의 이상적 영상구현을 위한 F.S system 과 C.R system의 촬영조건 비교분석
The Comparative Analysis of Exposure Conditions between F/S and C/R System for an Ideal Image in Simple Abdomen
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- 발행기관
- 대한디지털의료영상학회 바로가기
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- 간행물
- 대한디지털의료영상학회논문지 바로가기
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- 통권
- Volume 9 Number 1 (2007.06)바로가기
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- 페이지
- pp.37-43
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- 저자
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- 언어
- 한국어(KOR)
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- URL
- https://www.earticle.net/Article/A482936
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4,000원
원문정보
초록
- 영어
- 1. Purpose This study is to present effective exposure conditions to acquire the best image of simple abdomen in Film Screen (F.S) system and Computed Radiography (C.R) system. 2. Method In the F.S system, while an exposure condition was fixed as 70kVp, images of a patients simple abdomen were taken under the different mAs exposure conditions. Among these images, the best one was chosen by radiologists and radiological technologists. In the C.R system, the best image of the same patient was acquired with the same method from the F.S system. Both characteristic curves from F.S system and C.R system were analyzed . 3. Results In the F.S system, the best exposure condition of simple abdomen was 70kVp and 20mAs. In the CR system, with the fixed condition at 70kVp, the image densities of human organs, such as liver, kidney, spleen, psoas muscle, lumbar spine body and iliac crest, were almost same despite different environments (3.2mAs, 8mAs, 12mAs, 16mAs and 20mAs). However, when the exposure conditions were over or under (below) 12mAs, the images between the abdominal wall and the directly exposed part became blurred because the gap of density was decreased. In the C.R system, while the volume of mAs was decreased, an artifact of quantum mottle was increased. 4. Conclusion This study shows that the exposure condition in the C.R system can be reduced 40% than in the F.S system. This paper concluded that when the exposure conditions are set in CR environment, after the analysis of equipment character, such as image processing system(EDR : Exposure Data Recognition processing), PACS and so on, the high quality of image with maximum information can be acquired with a minimum exposure dose .
목차
Abstract
요약
I. 서론
II. 사용기기 및 재료
III. 실험 대상 및 방법
IV. 실험 결과
V. 고찰
VI. 결론
참고문헌
키워드
Film Screen (F.S) System Computed Radiography (C.R) System PACS Characteristic Curves Quantum Mottle EDR (Exposure Data Recognition Processing)저자
간행물 정보
발행기관
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- 발행기관명
- 대한디지털의료영상학회 [대한디지털의료영상학]
- 설립연도
- 1995
- 분야
- 의약학>방사선과학
- 소개
- 대한디지털의료영상학회는 디지털 영상 기술에 관한 연구와 실험 결과를 임상에 적용하여 영상의학 및 진단 방사선 기술 분야의 발전에 기여함을 목적으로 한다.
간행물
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- 간행물명
- 대한디지털의료영상학회논문지 [Korean Journal of Digital Imaging in Medicine]
- 간기
- 연3회
- pISSN
- 1976-7641
- 수록기간
- 1995~2025
- 십진분류
- KDC 510 DDC 610
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