TY - RPRT TI - New three-dimensional echocardiographic system using digital radiofrequency data--visualization and quantitative analysis of aortic valve dynamics with high resolution: methods, feasibility, and initial clinical experience. AU - Michael Handke AU - Cosima Jahnke AU - Gudrun Heinrichs AU - Jörg Schlegel AU - Clemens Vos AU - Daniel Schmitt AU - Christoph Bode AU - Annette Geibel PY - 2003 DO - 10.1161/01.cir.0000077909.54159.b4 UR - https://pubmed.ncbi.nlm.nih.gov/12782569/ ID - 12782569 ER -