H Liu1, Y Zhao1, Y Xia1, Z Wang1, Y Chen2. 1. Department of Nuclear Medicine, The Affiliated Hospital of Southwest Medical University, Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan, República Popular China. 2. Department of Nuclear Medicine, The Affiliated Hospital of Southwest Medical University, Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan, República Popular China. Electronic address: chenyue5523@126.com.