| Project/Area Number |
23591791
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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 | Iwate Medical University |
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Principal Investigator |
SATO Eiichi 岩手医科大学, 公私立大学の部局等, 教授 (90154038)
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| Co-Investigator(Renkei-kenkyūsha) |
ODA Yasuyuki 岩手医科大学, 教養教育センター, 助教 (50583671)
SAGAE Michiaki 岩手医科大学, 教養教育センター, 助教 (30235197)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | Ｘ線CT / エネルギー弁別CT / 高速CdTe検出器 / LSO-MPPC検出器 / YAP(Ce)-MPPC検出器 / ヨウ素KエッジCT / ガドリニウムKエッジCT / エネルギーサブトラクション / フォトンカウンティングCT / 高速エネルギー弁別 / CdTe検出器 / 高速デュアルエネルギーCT / エネルギー弁別X線CT / Si-PIN検出器 / 電荷有感式増幅器 / コンパレーター / K-エッジCT / 分子イメージング / X線CTシステム / エネルギー弁別 / フォトンカウンティング / ISO-MPPC検出器 / 高速電荷有感式増幅器 / 高速整形増幅器 / 高速コンパレーター |
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| Research Abstract |
In the present research, we developed an energy-dispersive X-ray computed tomography (ED-CT) system using a 25 mm/s linear CdTe scanner, a turntable, and an X-ray generator. Using this ED-CT with a maximum count rate of sub-Mcps, we performed enhanced K-edge imaging using iodine and gadolinium contrast media, and blood vessels and cancerous regions were observed at high contrast. Using the CdTe detector in conjunction with an x-y stage, we also developed a transmission-type camera, a reflection-type fluorescence camera, and a back-scattering X-ray camera. To carry out Mcps-range imaging, we developed LSO-MPPC and YAP(Ce)-MPPC detectors. Using these two detectors, we constructed the ED-CT system and performed high-speed K-edge imaging. Lately, a dual-energy comparator device was developed, and dual-energy subtraction was performed using two different energy images which were obtained simultaneously.
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