Abstract #3019

A Least Squares Approach for Relative Pressure Measurement from 4D flow PC-MRI

Sina Hooshyar^1,2, Sean Callahan², MJ Negahdar², Saeed Kermani¹, and Amir Amini²

¹Biomedical Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Science, Isfahan, Iran (Islamic Republic of), ²Electrical and Computer Engineering, University of Louisville, Louisville, KY, United States

Noninvasive determination of relative transstenotic pressure drop from 4D flow MRI has been investigated by a fast 3D matrix method based on the Least-Squares strategy. The method was tested with CFD velocity data as input as well as MRI phantom data. While results are comparable to the conventional pressure-poisson equation approach, the method is computationally more efficient.

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