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Abstract #3693

Real Time Phase Contrast MRI With Radial K-space Sampling With Golden Angle Ratio and Block Wise Low Rank Constraint

Hassan Haji-Valizadeh 1 , Elwin Bassett 2 , Ganesh Adluru 3 , Edward DiBella 4 , and Daniel Kim 4

1 Radiology, University of Utah, Salt lake city, Utah, United States, 2 University of Utah, Utah, United States, 3 Ucair,Radiology, Salt lake city, Utah, United States, 4 Ucair,Radiology, Utah, United States

Widespread clinical use of phase contrast MRI is restricted due to this modalities low data acquisition efficiency. Low efficiency may lead to low temporal and spatial resolution within a clinically acceptable breath hold. Compressed sensing in combination with low Rank Block Wise constraint is a promising strategy in increasing acquisition efficiency. The goal of this study is to characterize the efficacy of Low Rank Block Wise reconstruction by reconstructing retrospectively undersampled data, and comparing maximum velocity measure from reconstruction to maximum velocity obtained from fully sampled data sets. Agreement between maximum velocities will be achieved by using Bland Altman plots.

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