Xiujuan Mi1, Yirong Zhao2, Jianzhong Shu3. 1. Department of Neurology, Chongqing Hospital of Traditional Chinese Medicine, 6 Panxi Seventh Branch Road, Chongqing, 400021, China. 2. Department of Radiology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, China. 3. Department of Neurology, Chongqing Hospital of Traditional Chinese Medicine, 6 Panxi Seventh Branch Road, Chongqing, 400021, China. shjzh_my2004@163.com.