1. Departments of Medicine; Cardiovascular Division, University of Virginia Health System; Charlottesville Virginia USA
2. Department of Radiology; Beth Israel Deaconess Medical Center; Boston Massachusetts USA
3. Medical Imaging Technologies, Siemens Medical Solutions USA; Inc
4. Cardiology Professional Services, Berkshire Medical Center; Pittsfield Massachusetts USA
5. Division of Cardiovascular Disease, Scripps Clinic, John R. Anderson V Medical Pavilion; La Jolla California USA
6. Department of Biomedical Engineering; University of Virginia; Charlottesville Virginia USA
7. Radiology and Medical Imaging, University of Virginia Health System; Charlottesville Virginia USA