Patient setup system using a virtual X-ray image

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K19212
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Medical Physics and Radiological Technology
• Research Institution: Japanese Foundation for Cancer Research
• Principal Investigator: Hashimoto Masatoshi 公益財団法人がん研究会, 有明病院 放射線治療部, 医学物理士 (40375845)
• Co-Investigator(Renkei-kenkyūsha): HAGA Akihiro 東京大学, 医学部附属病院, 助教 (30448021) ; NAWA Kanabu 東京大学, 医学部附属病院, 助教 (00456914) ; NAKANO Masahiro がん研究会, 放射線治療部, 医学物理士 (50780384) ; TAKAHASHI Ryo がん研究会, 放射線治療部, 診療放射線技師 (10716757) ; MATSUBAYASHI Fumiyasu がん研究会, 放射線治療部, 診療放射線技師 (60716760) ; ITO Yasushi がん研究会, 放射線治療部, 診療放射線技師 (90627564) ; KOZUKA Takuyo がん研究会, 放射線治療部, 副部長 (30300932) ; OGUCHI Masahiko がん研究会, 放射線治療部, 部長 (50169257)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 放射線治療 / 外部照射 / 患者セットアップ / 距離画像センサ

Outline of Final Research Achievements

This study aimed to build a system to generate virtual X-ray images of patient position at the time of radiotherapy based on skinned mesh animation from depth images and skeleton data acquired by a range imaging sensor. We constructed a system to generate a virtual X-ray image which can be directly compared with digitally reconstructed radiograph (DRR) in real time using a range imaging sensor and treatment planning computed tomography images. In order to improve the accuracy of the virtual X-ray image, it is necessary to improve the reproducibility of the skeleton data and the detection accuracy of the depth image. This system enables highly accurate and non-invasive patient setup, and will lead to safer and more accurate radiotherapy.

Free Research Field

医学物理学