1. From the Cardiac MR PET CT Program (F.B., N.D., M.D.S., S.K.S., M.F., J.B., K.N., R.C.C., A.T., S.A., T.J.B., U.H.), the Department of Radiology (F.B., N.D., M.D.S., S.K.S., M.F., J.B., K.N., R.C.C., T.J.B., U.H.) and Cardiology Division (A.T.), Massachusetts General Hospital and Harvard Medical School, Boston, Mass; Harvard School of Public Health (F.B., U.H.), Boston Mass; the Department of Cardiology (W.K.), University of Ulm, Germany; and the Department of Cardiology (S.A.), University of...