Diagnostic reference levels for dental cone beam computed tomography

2014 Fiscal Year Final Research Report

• Project/Area Number: 24592846
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Pathobiological dentistry/Dental radiology
• Research Institution: The Nippon Dental University
• Principal Investigator: SATO Kenji 日本歯科大学, 生命歯学部, 准教授 (50130670)
• Project Period (FY): 2012-04-01 – 2015-03-31
• 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

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.

Free Research Field

放射線物理