1. From the Cardiovascular Division, NorthShore University HealthSystem, Evanston, IL (A.P.); Cardiac MR PET CT Program, Division of Cardiology, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston (A.P., A.M.L., T.M., W.A., S.U., M.F., S.B.P., U.H., B.B.G.); Department of Clinical Radiology, Ludwig-Maximilians University, Klinikum Grosshadern, Munich, Germany (F.B.); Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg,...