1. Department of Radiology , Xiangya Hospital, , 87 Xiangya Road, Changsha, 410008, China
2. Central South University , Xiangya Hospital, , 87 Xiangya Road, Changsha, 410008, China
3. Department of Neurology , Xiangya Hospital, , 87 Xiangya Road, Changsha, 410008, China
4. National Clinical Research Center for Geriatric Disorders , Xiangya Hospital, 87 Xiangya Road, Changsha, 410008, China
5. Molecular Imaging Research Center of Central South University , 87 Xiangya Road, Changsha, 410008, China
6. Key Laboratory for NeuroInformation of Ministry of Education , School of Life Science and Technology, , Chengdu, 610054, China
7. University of Electronic Science and Technology of China , School of Life Science and Technology, , Chengdu, 610054, China
8. Key Laboratory of Hunan Province in Neurodegenerative Disorders , , 87 Xiangya Road, Changsha, 410008, China
9. Central South University , , 87 Xiangya Road, Changsha, 410008, China