| Project/Area Number |
24591841
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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 |
Radiation science
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| Research Institution | Kagawa University |
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Principal Investigator |
UEMURA Koji 香川大学, 医学部附属病院, 准教授 (00308199)
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| Co-Investigator(Kenkyū-buntansha) |
ANDO Yutaka 独立行政法人放射線医学総合研究所, 重粒子医科学センター, 病院長 (20118904)
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| Co-Investigator(Renkei-kenkyūsha) |
TANIKAWA Takumi 旭川医科大学, 医学部, 講師 (40446539)
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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: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 放射線治療計画 / 線量分布 / 非線形位置合わせ / DICOM-RT / GPU / 放射線治療 |
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| Outline of Final Research Achievements |
In a repeated radiotherapy owing to a local recurrence close to the previous irradiation, the dose distribution is required not to overlap with previous one. So, a system for displaying dose-distribution （dd） image of previous irradiations on a present anatomical image would be helpful in designing new radiotherapy. In this study, we developed a method for aligning the dd image of previous irradiation to the present CT image using the 3-dimensional nonlinear registration between previous and present CT images. The Insight Toolkit (ITK) was applied to non-linear registration of abdominal CT images for a patient who received several times radiotherapy. As a result, the error of registration was small enough by an expert’s visual inspection, and the calculation took from several minutes to ten several minutes. The previous dd image could be registered to the present CT image using the transformation parameters obtained from the registration of previous and present CT images.
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