[22p-A102-1~17] 2.4 Medical application

[22p-A102-15] Visualization of the radioactive contamination by ¹⁷⁷Lutetium oxodotreotide treatment

〇Takara Watanabe¹, Daisuke Kano¹, Hiroshi Muraishi², Ryoji Enomoto³, Hideaki Katagiri⁴, Mika Kagaya⁵, 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, gamma ray, Lu-177 oxodotreotide

Recently, ¹⁷⁷Lu oxodotreotide was approved as a treatment for Neuroendocrine tumor. However, management of radioactive contamination was required large injection of ¹⁷⁷Lu oxodotreotide of 7.4 GBq for a patient. The purpose of this study was to perform easily measurement of the radioactive contamination. Therefore, the radioactive contamination was visualized with Compton camera. We carried out tests in the toilet that was used by a patient. The gamma-ray sources were found in the toilet bowl (0.55 μSv/h) and the rack (0.65 μSv/h) direction. Our Compton camera was able to measure the radioactive contamination from ¹⁷⁷Lu.