1. Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Suite 200, 387 Technology Circle, Atlanta, GA 30313-2412, USA
2. Department of Biomedical Engineering, University of Massachusetts Lowell, Lowell, MA, USA
3. Cardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
4. Structural Heart and Valve Center, Emory University Hospital, Atlanta, GA, USA
5. Department of Radiology, St. Paul's Hospital & University of British Columbia, Vancouver, British Columbia, CA
6. Department of Radiology and Imaging Science, Emory University School of Medicine, Atlanta, GA, USA