A Least Squares Approach for Relative Pressure Measurement from 4D flow PC-MRI
Sina Hooshyar1,2, 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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