Abstract #3302

Whole Heart Flow-Sensitive 4D MRI in Patients After Repair of Tetralogy of Fallot

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

¹Radiology and Medical Physics, University Hospital Freiburg, Freiburg, Germany; ²Pediatric Cardiology, University Hospital Freiburg, Freiburg, Germany

The aim of this study was to analyze the flow characteristics in patients after repair of tetralogy of Fallot by flow-sensitive 4D MRI. Flow acceleration, vortices and retrograde flow were successfully visualized in the pulmonary system. We detected a significant correlation between some vascular geometric parameters, particularly vessel diameter and pulmonary branching angles, and abnormal flow patterns. 4D MRI is an excellent technique to demonstrate the complexity of postoperative hemodynamics in Fallot patients.