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Abstract #3288

Stenosis Flow: Comparison of a Generalized Navier-Stokes Model & Phase Contrast MRI

Alex J. Barker1, Jelena Bock1, Michael Markl1

1Medical Physics, Dept. of Radiology, University Medical Center Freiburg, Freiburg, Germany

The elevated velocities and accelerations present in stenosis flow phantoms replicate abnormal flow conditions present in a number of valvular and vascular pathologies. These conditions prove ideal for flow-sensitive sequence development and artifact characterization. However, it is difficult and time consuming to obtain velocity field ground truths, often requiring the implementation of CFD. Thus, a flexible integral-energy generalization of the Navier-Stokes equations is presented and compared to MR measurements. This framework provides a method to obtain stenosis velocity fields in which the flexible inputs are geometry, viscosity, and flow rate.