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Parametric Sequential Method for MRI-based Wall Shear Stress Quantification

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Document pages: 8 pages

Abstract: Wall shear stress (WSS) has been suggested as a potential biomarker invarious cardiovascular diseases and it can be estimated from phase-contrastMagnetic Resonance Imaging (PC-MRI) velocity measurements. We present a newparametric sequential method for MRI-based WSS quantification consisting of ageometry identification and a subsequent approximation of the velocity field.The new method was validated on well controlled, high resolution in vitromeasurements of turbulent stationary flows and physiological pulsatile flows inphantoms. Basic applicability to in vivo was demonstrated using 2D PC-MRI dataof the ascending aorta of three volunteers.

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