[9a-Z14-1~12] 2.5 Medical application

[9a-Z14-6] Development of a high-sensitivity Compton camera capable of measuring urinary radioactivity in ¹⁸F-FDG PET patients

〇Takara Watanabe¹, Daisuke Kano¹, Hiroshi Muraishi², Ryoji Enomoto³, Hideaki Katagiri⁴, Mika Kagaya⁵, Saki Ishikawa², Yoshihiro Nakagami^1,6 (1.NCCHE, 2.Kitasato Univ., 3.ICRR, Univ. of Tokyo, 4.Ibaraki Univ., 5.NIT, Sendai College, 6.Dokkyo Medical Univ.)

Keywords:Compton camera, urinary radioactivity, CsI(Tl) scintillator

We developed a high-sensitivity omnidirectional gamma-ray Compton camera using crystal scintillators to improve the accuracy of the standardized uptake value (SUV). In this study, we measured gamma rays released from ¹⁸F-fluorodeoxyglucose (¹⁸F-FDG) in urinary. In our previous study, we developed a Compton camera that was able to measure the radioactivity of ¹⁸F-FDG in 30 seconds. However, some patients might flush the toilet within this period. In this meeting, we will report on the improvement of the method.