1. Department of Neurosurgery, Jingjiang People's Hospital, Jingjiang, Jiangsu 214500, P.R. China
2. Department of Medical Imaging, Wuxi Clinical College of Anhui Medical University, 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, Jiangsu 214044, P.R. China
3. Department of Neurosurgery, Wuxi Clinical College of Anhui Medical University, 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, Jiangsu 214044, P.R. China