Quantitative evaluation and calibration of PET scanners using traceable point-like sources

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K08701
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Medical Physics and Radiological Technology
• Research Institution: Kitasato University
• Principal Investigator: Hasegawa Tomoyuki 北里大学, 医療衛生学部, 教授 (10276181)
• Co-Investigator(Renkei-kenkyūsha): SATO YASUSHI 産業技術総合研究所, 計測標準研究部門, 研究員 (90357153) ; ODA KEIICI 北海道科学大学, 教授 (70224235) ; WADA YASUHIRO 理化学研究所, 生命機能化学研究センター, 副チームリーダー (40382197) ; INOUE YUSUKE 北里大学, 医学部, 教授 (40232566)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: PET / 点状線源 / 校正 / 定量性 / 品質管理 / 医学物理

Outline of Final Research Achievements

Positron emission tomography (PET) plays an important role in diagnostic imaging and molecular imaging researches. Its utility is supported by physical quality control of PET scanners, among which the most important is quantitative evaluation and calibration. However, with the conventional method using a phantom and a dose calibrator, its reliability and convenience were limited. In this research, we developed novel traceable point-like sources, evaluation and calibration protocols using them, promoting multicenter studies on a total of 13 models in Japan, and revealed the usefulness of the proposed method.

Free Research Field

放射線物理学、医学物理学