Earticle

초록

영어

This study aim to investigate image characteristics due to focus-grid and head phantom decentering from the armorphos silicon thin film transistor detector the fixed focus-grid is applied, wish to propose right use method of digital medical equipment. Acquired image according to focus-grid and head phantom position decentering using head phantom on armorphos silicon thin film transistor detector the fixed focus-grid is applied, acquired image evaluate pixel value, histogram, plot profile, surface plot using NIH (Image J) image analysis program and compared decentering image with standai-d image. Mean value and standard deviation value of focus-grid lateral decentering and duplex decentering of focus-grid and head phantom decreased by ratio, consequently increase of horizontality, diagonal decentering, also, deteriorated contrast of image because frequency of high pixel value decreases fairly, according increases decentering, image distortion phenomenon was increase, by next time, pixel mean value of head phantom decentering was no big change but horizontality, diagonal, mean value and standard deviation value of pixel decreased by ratio. Even if increase pixel noise of image because wide latitude and post processing ability of digital detector, radiotechnologist can not recognize. Therefore, radiotechnologist must recognize correctly the photographing factors which increases pixel noise on the grid system installation digital detector and should exam.

목차

요약
Abstract
I. 서론
II. 연구대상 및 방법
1. 연구대상
2. 연구방법
III. 결과
IV. 고찰 및 결론
참고문헌

키워드

저자

• 최준구 [ Jun Gu Choi | 건국대학교병원 영상의학지원팀 ]
• 김병기 [ Byeong Gi Kim | 건국대학교병원 영상의학지원팀 ]
• 차선화 [ Seon Hwa Cha | 건국대학교병원 영상의학지원팀 ]
• 김경수 [ Gyeong Su Kim | 건국대학교병원 영상의학지원팀 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한디지털의료영상학회논문지 [Korean Journal of Digital Imaging in Medicine]

• 간기

  연3회

• pISSN

  1976-7641

• 수록기간

  1995~2025

• 십진분류

  KDC 510 DDC 610