1. From the Department of Internal Medicine, Division of Cardiology (Y.v.K., S.K.C., D.H.K., T.M.), Division of Radiology (C.D.), and Institute of Mathematics and Computer Science in Medicine (J.B.), University Hospital Eppendorf, Hamburg, Germany; Department of Cardiovascular Surgery (M.K., A.H.), Hannover Medical School, Hannover, Germany; Department of Cardiovascular Surgery (R.L.), Christian-Albrechts-University, Kiel, Germany; Department of Radiology (R.F.), Cardiovascular Unit, University...