1. From the Department of Radiology, Yale University, New Haven, CT (A.G.); Cardiac MR, PET CT Program, Department of Radiology (A.G., H.S.L., B.B.G., Q.A.T., U.H.), Institute for Technology Assessment (A.G., P.M.M., V.M., M.G., G.S.G.), and Department of Cardiology (Q.A.T.), Massachusetts General Hospital, Boston, MA; Harvard Medical School, Boston, MA (A.G., P.M.M., C.C.W., B.B.G., Q.A.T., G.S.G., U.H.); Division of Thoracic Imaging, Department of Radiology, Massachusetts General Hospital, Harvard...