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Original Article

Korean Journal of Medical Physics 2010; 21(2): 127-136

Published online June 25, 2010

Copyright © Korean Society of Medical Physics.

The Clinical Implementation of 2D Dose Distribution QA System forthe Patient Specific Respiratory-gated Radiotherapy

호흡동조 방사선치료의 2차원 선량 분포 정도관리를 위한 4D 정도관리 시스템 개발

Jin Sung Kim, Eunhyuk Shin, Jung Suk Shin, Sang Gyu Ju, Youngyih Han, Hee-Chul Park, Doo Ho Choi

김진성ㆍ신은혁ㆍ신정석ㆍ주상규ㆍ한영이ㆍ박희철ㆍ최두호

Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

성균관대학교 의과대학 삼성서울병원 방사선종양학교실

Abstract

Emerging technologies such as four-dimensional computed tomography (4D CT) is expected to allow clinicians to accurately model interfractional motion and to quantitatively estimate internal target volumes (ITVs) for radiation therapy involving moving targets. A need exists for a 4D radiation therapy quality assurance (QA) device that can incorporate and analyze the patient specific intrafractional motion as it relate to dose delivery and respiratory gating. We built a 4D RT prototype device and analyzed the patient-specific 4D radiation therapy QA for 2D dose distributions successfully. With more improvements, the 4D RT QA prototype device could be an integral part of a 4D RT decision process to confirm the dose delivery.

KeywordsRespiratory-gated radiotherapy, Quality assurance, Dose distribution

Korean Society of Medical Physics

Vol.35 No.2
June 2024

pISSN 2508-4445
eISSN 2508-4453
Formerly ISSN 1226-5829

Frequency: Quarterly

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