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Study on the Validation of the Gated Cone-Beam Computed Tomography on Radiation Therapeutic Linear Accelerator

방사선치료용 선형가속기를 이용한 Gated Cone-Beam CT의 유용성 연구

  • Seo, Jeong-Min (Department of Nuclear Engineering, Hanyang University) ;
  • Kim, Chan-Hyeong (Department of Nuclear Engineering, Hanyang University) ;
  • Park, Byoung-Suk (Department of Radiation Oncology, Samsung Medical Center) ;
  • Park, Cheol-Soo (Department of Radiological Science, Hanlym Polytechnic University) ;
  • Jang, Hyon-Chol (Department of Radiological technology, Suseong College) ;
  • Kim, Joung-Dae (Dep. of Preventive Medicine, College of Medicine, Kangwong National University)
  • 서정민 (한양대학교 원자력공학과) ;
  • 김찬형 (한양대학교 원자력공학과) ;
  • 박병석 (삼성서울병원 방사선종양학과) ;
  • 박철수 (한림성심대학교 방사선과) ;
  • 장현철 (수성대학교 방사선과) ;
  • 김정대 (강원대학교 의과대학 예방의학교실)
  • Received : 2015.05.20
  • Accepted : 2015.10.08
  • Published : 2015.10.31

Abstract

The respiration is one of important factor in the radiation therapy. The existing commercial method of cone-beam computed tomography on LINAC does not consider respiratory motion of patient hence the images are both distorted and inaccurate. In this study, the cone-beam computed tomography images have been reconstructed from back projection radiography of specific phase on breathing cycle which concerned about respiratory movement in radiation therapy. This study investigated how different between cone-beam CT images with and without gating respiratory movement, and this paper provides that guide and implementation of gated cone-beam CT on radiation therapeutic equipment.

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