| Project/Area Number |
24592846
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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 |
Pathobiological dentistry/Dental radiology
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| Research Institution | The Nippon Dental University |
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Principal Investigator |
SATO Kenji 日本歯科大学, 生命歯学部, 准教授 (50130670)
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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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 歯科用コーンビームCT / 診断参考レベル / 面積線量 / 空気カーマ / 線量データベース / 被曝線量 |
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| Outline of Final Research Achievements |
To establish diagnostic reference levels for dental cone beam CT (dental CBCT), a statistical analysis was performed on the results from a questionnaire survey on dental CBCT at university dental hospitals in Japan. The third quartile dose-area products (DAP) and air kerma (DAP/FOV area) at rotation center were determined. For example, the third quartile at the protocols of 4×4 cm FOV, DAPs and air kermas for an adult, child, and all patiens are 470、420、460 mGy cm2, and 20、25、30 mGy, respectively.
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