한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

CCD Camera 기반 실시간 방사선치료조사면 검증 시스템 개발 및 화질개선을 위한 기초연구

System Development and Fundamental Study of CCD Camera Based Electronic Portal Imaging Device

  • 장기원 (인제대학교 의료영상연구소) ;
  • 박지군 (인제대학교 의료영상연구소) ;
  • 이동길 (인제대학교 의료영상연구소) ;
  • 김진영 (인제대학교 의료영상연구소) ;
  • 남상희 (인제대학교 의료영상연구소) ;
  • 하성환 (서울대학교 의과대학)
  • Jang, Gi-Won (Medical Imaging Research Center of Inje University) ;
  • Park, Ji-Koon (Medical Imaging Research Center of Inje University) ;
  • Lee, Dong-Gil (Medical Imaging Research Center of Inje University) ;
  • Kim, Jin-Yeong (Medical Imaging Research Center of Inje University) ;
  • Nam, Sang-Hee (Medical Imaging Research Center of Inje University) ;
  • Ha, Sung-Whan (College of Medicine, Seoul National University:)
  • 발행 : 2003.11.13
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초록

The purpose of this study is to develope prototype EPID system and improve image quality of radiation therapy field imaging system using CCD camera. For this research we used Linac(Clinac 4/100), Copper metal plate, $Gd_2O_2S_2$ phosphor and CCD camera(Photronic). In this study we find best thickness of buil-up metal plate and acquired projection image of humanoid head phantom. Also we enhanced raw image data using superposition and histogram stretching method. Through the thickness optimized of metal plate and image processing, we confirmed of an improved image quality of an EPID system using CCD camera. As result, highest quality image was acquired at 1mm thickness of Copper metal plate and improved image quality by image processing methods.

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