Fast method for computation of the static pressure field in stenotic geometries by PC MRI

Abbas N. Moghaddam; Nasser Fatouraee; Eric T. Choi; Amir A. Amini

doi:10.1117/12.480693

2 May 2003 Fast method for computation of the static pressure field in stenotic geometries by PC MRI

Abbas N. Moghaddam, Nasser Fatouraee, Eric T. Choi, Amir A. Amini

Proceedings Volume 5031, Medical Imaging 2003: Physiology and Function: Methods, Systems, and Applications; (2003) https://doi.org/10.1117/12.480693
Event: Medical Imaging 2003, 2003, San Diego, California, United States

Abstract

In this paper a very fast algorithm for non-invasive intra-vascular pressure measurement using Phase-Contrast MRI data is introduced. A noise robust finite difference numerical method has been developed to quickly calculate the relative static pressure in steady flow by using the Navier-Stokes equation in axisymmetric geometries. We show that in such geometries, pressure calculation may be performed in less than two minutes and by using a single PC MR slice containing the axis of symmetry, in turn resulting in dramatic reductions in the acquisition time. The method has been validated under a variety of additive noise conditions with computational fluid dynamics (CFD) flow simulations within phantom geometries. Effects of noise, resolution, and velocity (flow) are discussed.

Citation Download Citation

Abbas N. Moghaddam, Nasser Fatouraee, Eric T. Choi, and Amir A. Amini "Fast method for computation of the static pressure field in stenotic geometries by PC MRI", Proc. SPIE 5031, Medical Imaging 2003: Physiology and Function: Methods, Systems, and Applications, (2 May 2003); https://doi.org/10.1117/12.480693

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