Institution: | (1) West German Heart Center Essen, Department of Cardiology, University of Duisburg-Essen, Hufelandstrasse 55, 45122 Essen, Germany;(2) Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Boston, MA, USA;(3) Cardiac Ultrasound Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA;(4) Institute of Diagnostic and Interventional Radiology, University of Duisburg-Essen, Essen, Germany |