| Project/Area Number |
21611001
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Medical Physics/Radiological Technology
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| Research Institution | University of Tsukuba |
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Principal Investigator |
KUDO Hiroyuki 筑波大学, システム情報系, 教授 (60221933)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKEDA Tohoru 北里大学, 医療衛生学部, 教授 (10197311)
TAKIZAWA Hotaka 筑波大学, システム情報系, 准教授 (40303705)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 医用画像 / CT / 画像処理 / 画像再構成 / 逆問題 / 被曝 / コンプレストセンシング / MAP推定 / 被曝量 |
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| Research Abstract |
Recent developments in CT technology enabled generating high-quality 3-D and 4-D images. However, necessary patient dose per each CT examination is increasing very much. In this research, we investigated fundamentals and applications of ultra low-dose new-generation CT based on the following two principles. The first principle is called interior CT, in which x-rays are radiated only to small region-of-interests such as heart or breast. The second principle is called sparse-view CT, in which only a limited number of projections are measured. Consequently, we established fundamentals of the next-generation CT and demonstrated their feasibilities.
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