디지털 평판형 검출기에서 Control Panel의 Density Display와 Sensitivity 설정이 조사선량(mAs)과 획득영상에 미치는 영향에 관한 연구
Study on the Exposure Dose (mAs) and acquisition Image set up Density Display and Sensitivity of control Panel for the Digital Flat-Panel-Detector
※ 기관로그인 시 무료 이용이 가능합니다.
※ 학술발표대회집, 워크숍 자료집 중 4페이지 이내 논문은 '요약'만 제공되는 경우가 있으니, 구매 전에 간행물명, 페이지 수 확인 부탁 드립니다.
4,000원
원문정보
초록
영어
The purpose to recognize change of average pixel value of acquisition image by control panel's density and right set up method of speed(sensitivity) and exposure dose(mAs) change that dose in purpose digital flatpanel- detector. X-ray generator DHF—158H2(Hitachi,Japan). Detector CXDI 40G(Canon, Japan), 12 : 1 grid and exposure ray 135 kVp, 250 mA, 10 ms. focus-detector distance 180 cm and used ABC mode. DICDM reflex analysis program used image J that is digital reflex analysis program that offer in United States America National Health Center(National Institutes of Health : NIH) phantom used chest phantom(Anthromorphic : Flukebrome.inedical USA). An experiment chest phantom that consist by formation equivalence material use because density value(-3~+3) in X-ray control panel and seep that is speed step(slow, medium, fast) each control experimentalize, image analysis reflex neted through an experiment using image j each image compare. These was change in dose according to slow, medium, fast and density's change in an experiment result. According to detector sensitivity and density condition set, dose was relationship dissimilarity 500% from 200%. The dose came highest when is density +3 to slow, and dose more increases gray scale’s extent could know that rise. Could know whether how equipment set is important through this experiment, cause of disease which change by digital radiography system forward is thought to increase more, it is considered that suitable education by this and continuous interest about equipment need absolutely.
목차
Abstract I. 서론 II. 연구대상 및 방법 1. 실험 장치 및 도구 2. 연구방법 III. 실험결과 IV. 결론 참고문헌
키워드
Digital Flat-Panel-DetectorDensity isplaySensitivityExposure Dose(mAs)AEC mode