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Abstract #1349

Flow Sensitive 4D MRI at 1.5T and 3T

Christoph Strecker1, Andreas Harloff2, Michael Markl3

1Department of Neurology, University Hospital, Albert-Ludwigs-University , Freiburg, Germany; 2Department of Neurology, University Hospital, Albert-Ludwigs-University , Freiburg , Germany; 3Department of Radiology, Medical Physics, University Hospital, Albert-Ludwigs-University , Freiburg, Germany

Synopsis: It was the purpose of this study to evaluate the performance of flow-sensitive 4D MRI of the thoracic aorta at 1.5T and 3T. 10 healthy volunteers were examined with 4D-MRI at both field strengths with regard to velocity noise, 3D flow visualization and quantitative flow analysis. 3T was superior regarding reduced velocity noise, improved quality of blood flow visualization, and quantification of peak velocities. It could be shown that flow-sensitive 4D-MRI was feasible at both field strengths and can provide comprehensive information of aortic 3D hemodynamics and geometry.