[Shuai, ZF; Shuai, Zhifeng; Zhou, Yingjun; Liu, Haibo] Xiangtan Cent Hosp, Dept Radiol, Xiangtan 411100, Hunan, Peoples R China.
[Xiao, Pan] Univ South China, Hengyang Med Sch, Graguate Collaborat Training Base Xiangtan Cent Ho, Xiangtan 421000, Hunan, Peoples R China.
[Li, Yunhua] Sichuan Univ, Jintang Hosp, West China Hosp, Jintang Peoples Hosp 1,Dept Radiol, Chengdu 610400, Sichuan, Peoples R China.
[Jiang, Dengke] Hunan Univ Chinese Med, Affiliated Hosp 2, Dept Radiol, Changsha 410005, Hunan, Peoples R China.