| Project/Area Number |
15H04899
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Radiation science
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
梅垣 菊男 北海道大学, 工学研究院, 教授 (40643193)
高尾 聖心 北海道大学, 大学病院, 助教 (10614216)
松浦 妙子 北海道大学, 工学研究院, 准教授 (90590266)
宮本 直樹 北海道大学, 大学病院, 助教 (00552879)
西岡 健太郎 北海道大学, 大学病院, 特任助教 (80463743)
木下 留美子 北海道大学, 大学病院, 助教 (70507582)
加藤 徳雄 北海道大学, 大学病院, 助教 (80572495)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2016: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
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| Keywords | 放射線治療 / 粒子線治療 / 陽子線治療 / 動体追跡装置 / 四次元放射線治療 / 4D-CT / 4D-CBCT / 医学物理(学) / 医学物理(学） / 4次元CT / CBCT / ゲーティング照射 / コーンビームCT |
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| Outline of Final Research Achievements |
We conduct research using 2 axis of diagnostic X-ray fluoroscope that consist real-time tumour-tracking (RTRT) system installed in a proton beam treatment gantry. With the use of the system, we conduct a research aimed constructing a 4D-IGRT radiotherapy system that can treat cancer in consideration of spatial and temporal fluctuations and also respiratory movement of tumors. Four-dimensional cone beam CT (4D-CBCT) image is obtained from the fluoroscopic image of the RTRT system. From the 4D-CBCT image group composed of a plurality of respiratory phases, a CT image that represent the same respiratory phase as the CT image used for the treatment plan is selected. We develop an advanced real time image guidance system aiming marker-less 4D-RT using selected CBCT image and its source image.
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