1. Department of Biomedical Engineering, Boston University, USA
2. Department of Electrical and Computer Engineering, Boston University, USA
3. Department of Neurology, Boston University Medical Center, USA
4. Department of Radiology, Massachusetts General Hospital, USA
5. Department of Mechanical Engineering, the Chinese University of Hong Kong, Hong Kong
6. Departments of Neurology and Pathology, Boston University School of Medicine, USA
7. Department of Radiology, Massachusetts General Hospital, Boston, MA, USA