Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China. Department of Neurology, Shenyang First People's Hospital, Shenyang Brain Institute, Shenyang Medical College Affiliated Shenyang Brain Hospital, Shenyang, China. jakeyisui@icloud.com. Department of Neurology, Shenyang First People's Hospital, Shenyang Brain Institute, Shenyang Medical College Affiliated Shenyang Brain Hospital, Shenyang, China. Department of Diagnostic Sonography, Shenyang First People's Hospital, Shenyang Brain Institute, Shenyang Medical College Affiliated Shenyang Brain Hospital, Shenyang, China. Department of Neurology, the Fourth Affiliated Hospital, China Medical University, Shenyang, China.