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Abstract #1341

Whole Heart Flow Sensitive 4D MRI in Congenital Heart Disease

Julia Geiger1, Raoul Arnold2, Alex Frydrychowicz3, Brigitte Stiller2, Mathias Langer1, Michael Markl1

1Diagnostic Radiology and Medical Physics, University Hospital Freiburg, Freiburg, Baden-Wuerttemberg, Germany; 2Pediatric Cardiology, University Hospital Freiburg; 3Diagnostic Radiology , University of Wisconsin

The aim of this study was to assess the vessel morphology and altered hemodynamics in patients with operated congenital heart disease by flow sensitive whole heart 4D MRI. 15 patients with heterogeneous heart defects were examined on 1.5 or 3 T MRI scanners using a gradient echo sequence with interleaved 3-directional velocity encoding. Postoperative altered hemodynamics including flow acceleration or vortex formation could be visualized and characterized. Therefore, we take the method to be a promising modality for acquisition of comprehensive flow behavior and better understanding of extraordinary flow profiles in congenital heart disease.