1. Stroke Office, Jingmen First People's Hospital, Jingmen, Hubei 448000, P.R. China
2. Department of Ultrasound Imaging, Jingmen First People's Hospital, Jingmen, Hubei 448000, P.R. China
3. Department of Neurosurgery, Jingmen First People's Hospital, Jingmen, Hubei 448000, P.R. China