| Co-Investigator(Kenkyū-buntansha) |
YAMAZAKI Hiromichi 東北大学, サイクロトロン・ラジオアイソトープセンター, 教授 (00166654)
MATSUYAMA Shigeo 東北大学, 大学院・工学研究科, 准教授 (70219525)
KIKUCHI Yohei 東北大学, 大学院・工学研究科, 助教 (50359535)
ITO Takashi 東北大学, 大学院・工学研究科, 教授 (20374952)
KOTANI Koji 東北大学, 大学院・工学研究科, 准教授 (20250699)
YANAI Kazuhiko 東北大学, 大学院・医学系研究科, 教授 (50192787)
HATAZAWA Jun 東北大学, 大学院・医学系研究科, 教授 (70198745)
ITO Nobuhiko 北里大学, 獣医畜産学部, 教授 (00159899)
伊藤 正敏 東北大学, サイクロトロンRIセンター, 名誉教授 (00125501)
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| Budget Amount *help |
¥550,550,000 (Direct Cost: ¥423,500,000、Indirect Cost: ¥127,050,000)
Fiscal Year 2009: ¥153,660,000 (Direct Cost: ¥118,200,000、Indirect Cost: ¥35,460,000)
Fiscal Year 2008: ¥84,630,000 (Direct Cost: ¥65,100,000、Indirect Cost: ¥19,530,000)
Fiscal Year 2007: ¥67,600,000 (Direct Cost: ¥52,000,000、Indirect Cost: ¥15,600,000)
Fiscal Year 2006: ¥119,990,000 (Direct Cost: ¥92,300,000、Indirect Cost: ¥27,690,000)
Fiscal Year 2005: ¥124,670,000 (Direct Cost: ¥95,900,000、Indirect Cost: ¥28,770,000)
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| Research Abstract |
The mortality rate for cancer is increasing every year and high resolution PETs which can detect minute cancer are called for now. We developed a semiconductor PET with a spatial resolution of less than 1mm by miniaturizing CdTe semiconductor detectors, while only about 4mm resolution is obtained in the conventional PET using scintillation detectors. It inspires the dawn of super-high resolution PET age. By a mouse experiment with the PET, we could show an FDG picture of 1mm cancers for the first time in the world. Furthermore, we succeeded to develop two-dimensional position sensitive CdTe detectors which provide both high resolution and high sensitivity. Stacking these detectors, we manufactured three-dimensional position sensitive detector blocks and developed a super-high resolution semiconductor PET for humans.
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