2013 Fiscal Year Final Research Report
A study on multidirectional gamma camera system for reconstruction of delivered position and absorbed dose distribution
| Project/Area Number |
23602010
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Medical Physics/Radiological Technology
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
SAITOH Hidetoshi 首都大学東京, 人間健康科学研究科, 教授 (50196002)
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| Co-Investigator(Kenkyū-buntansha) |
FUJISAKI Tatsuya 茨城県立医療大学, 保健医療学部, 教授 (00285058)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 放射線治療 / 画像誘導放射線治療 / 体内線量分布再構成 / コンプトンカメラ / ガンマカメラ / 散乱線 / エネルギースペクトル / scatter to primary ratio |
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| Research Abstract |
A purpose of this study is to develop a gamma camera system for reconstruction of irradiation position and delivered absorbed dose distribution using information of the Compton scattered photons from a patient during radiation therapy with high energy x-rays.
For this purpose the idea of Compton camera was taken in and the possibility was demonstrated by the simulation. Furthermore to design a prototype system, the energy spectrum and accumulation efficiency of the Compton scattered photons was simulated and confirmed experimentally. Using these data, the basic study related a detector, a collimator system and reconstruction algorithm was performed.
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