[1] Cent South Univ, Xiangya Hosp, Hlth Management Ctr, Changsha, Peoples R China
[2] Cent South Univ, XiangYa Hosp, Dept Nucl Med, 87 Xiangya Rd, Changsha 410008, Hunan, Peoples R China
[3] Tsinghua Univ, Dept Automat, Tsinghua Natl Lab Informat Sci & Technol, Beijing, Peoples R China
[4] Cent South Univ, Xiangya Hosp, Dept Radiol, 87 Xiangya Rd, Changsha 410008, Hunan, Peoples R China
[5] Natl Hlth Commiss, Key Lab Biol Nanotechnol, Changsha, Peoples R China
[6] Natl Clin Res Ctr Geriatr Dis XIANGYA, Changsha, Peoples R China
[7] Cent South Univ, XiangYa Hosp, Dept Emergency, Changsha, Peoples R China