1Department of Biomedical Engineering, Dalian University of Technology, Dalian, China, People's Republic of, 2McLean Imaging Center, McLean Hospital/Harvard Medical School, Belmont, MA, United States, 3GE Healthcare, MR Research China, Beijing, China, People's Republic of, 4Department of Statistics and Warwick Manufacturing Group, University of Warwick, Coventry, United Kingdom, 5Center for MRI Research, Peking University, Beijing, China, People's Republic of