1. From the Department of Radiology (M.S., D.J.W., J.V., H.C.B., J.B., F.S., M.P.) and Clinic of Cardiology (P.H., M.J.Z.), University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland; and Magnetic Resonance, Siemens Healthcare, Erlangen, Germany (D.G.).