1. Department of Radiology, MacKay Memorial Hospital, Taipei, Taiwan.
2. Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan.
3. Institute of Biomedical Sciences, Mackay Medical College, New Taipei, Taiwan.
4. Department of Cardiology, Linkou Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
5. Department of Medical Imaging and Intervention, Linkou Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
6. Department of Medical Biophysics, University of Western Ontario, Imaging Program, Lawson Health Research Institute, London, Canada.