1. Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
2. Department of Imaging Diagnosis Center, Sun Yat-sen University Cancer Center, Guangzhou, China
3. Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha,China
4. Center for Molecular Medicine,Xiangya Hospital, Central South University, Changsha, China