Improvement of legion detectability and development of further radiation reduction at 64-detector CT
| Project/Area Number |
20591449
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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 |
Radiation science
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| Research Institution | Kumamoto University |
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Principal Investigator |
FUNAMA Yoshinori Kumamoto University, 大学院・生命科学研究部, 助教 (30380992)
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| Co-Investigator(Kenkyū-buntansha) |
AWAI Kazuo 広島大学, 大学院・医歯薬学総合研究科, 教授 (30294573)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | CT / 検出能 / 被曝線量 / 画質 / CNR / ATCM / Image noise / Radiation dose / Detectability / Helical scan / Axial scan / AEC technique / Dual energy subtraction |
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| Research Abstract |
The purpose of our study was to deal with improvement of legion detectability and further reduction of radiation dose at 64-detector CT. First, we have studied about comparison of step-and-shoot- and helical- scan. Helical scan realized the improvement of legion detectability and enabled the stable CT examination. Second, we have studied the development of contrast-to-noise ratio (CNR) based modulation technology to further reduce the radiation dose. Novel CNR technology enabled the both dose reduction and improved image quality in CT scanning.
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Report
(4 results)
Research Products
(9 results)
