1. Division of Cardiology, Department of Medicine Johns Hopkins University Baltimore Maryland USA
2. Russel H. Morgan Department of Radiology and Radiological Science Johns Hopkins University Baltimore Maryland USA
3. Advanced Clinical Imaging Technology Siemens Healthcare Lausanne Switzerland
4. Department of Radiology University Hospital of Lausanne Lausanne Switzerland
5. Center for Biomedical Imaging (CIBM) University Hospital of Lausanne Lausanne Switzerland
6. Siemens Medical Solutions USA, Inc Baltimore Maryland USA
7. Siemens Medical Solutions USA, Inc Los Angeles California USA