Share Email Print
cover

Proceedings Paper

Fast method for computation of the static pressure field in stenotic geometries by PC MRI
Author(s): Abbas N. Moghaddam; Nasser Fatouraee; Eric T. Choi; Amir A. Amini
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper 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.

Paper Details

Date Published: 2 May 2003
PDF: 12 pages
Proc. SPIE 5031, Medical Imaging 2003: Physiology and Function: Methods, Systems, and Applications, (2 May 2003); doi: 10.1117/12.480693
Show Author Affiliations
Abbas N. Moghaddam, Washington Univ. Medical Ctr. (United States)
Nasser Fatouraee, Washington Univ. Medical Ctr. (United States)
Eric T. Choi, Washington Univ. Medical Ctr. (United States)
Amir A. Amini, Washington Univ. Medical Ctr. (United States)


Published in SPIE Proceedings Vol. 5031:
Medical Imaging 2003: Physiology and Function: Methods, Systems, and Applications
Anne V. Clough; Amir A. Amini, Editor(s)

© SPIE. Terms of Use
Back to Top