| Project/Area Number |
24601015
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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 |
医学物理学・放射線技術学
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| Research Institution | Kitasato University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
HARA Hidetake 北里大学, 医療衛生学部, 助教 (80381424)
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| Co-Investigator(Renkei-kenkyūsha) |
ABE Shinji 茨城県立医療大学, 保健医療学部, 教授 (00274978)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 重粒子線がん治療 / 治療計画 / 断層撮影 / 電子密度 / 頭部脳腫瘍 / 重粒子線治療 / 放射線がん治療 / 重粒子線CT |
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| Outline of Final Research Achievements |
We developed a new heavy ion computed tomography system using scintillation screen - electron-multiplying charged coupled device (EMCCD) camera capable of measuring a large object, such as a human head. We prepared a new large dynamic range shifter consisting of a binary right triangular prism made of PMMA. We performed the experimental tests with a new system using the Heavy Ion Medical Accelerator in Chiba (HIMAC), at the National Institute of Radiological Sciences (NIRS), where a new broad beam of 12C generated by spreading out the pencil beam accelerated up to 430 MeV/u using a scatterer and wobbler magnets was also prepared. We successfully achieved the two-dimensional relative residual range distribution with the same accuracy (σ=0.04 mm (PMMA)) for a field of view (FOV) of 180 mm. We successfully reconstructed PMMA rods with a diameter of 1cm at arbitrary positions in FOV. CT data acquisition using brain tumor phantom and our new system will be performed in 2015 at NIRS.
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