1 Department of Neurology, Kunshan Hospital of Traditional Chinese Medicine, Kunshan, PR China.
2 Department of Radiology, The Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng, PR China.
3 Department of Radiology, The Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng, PR China. Electronic address: ycjbhu@sina.com.