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Abstract #0066

Combination of Compressed Sensing & Parallel Imaging with Respiratory Motion Correction for Highly-Accelerated First-Pass Cardiac Perfusion MRI

Ricardo Otazo1, Daniel Kim1, Leon Axel1, Daniel K. Sodickson1

1Department of Radiology, NYU School of Medicine, New York, NY, USA

First-pass cardiac perfusion MRI studies can be highly accelerated using a combination of compressed sensing and parallel imaging. However, this method is sensitive to respiratory motion, which decreases sparsity in the combined spatial and temporal-frequency domain and produces temporal blurring in the reconstructed images. In this work, we present a rigid respiratory motion correction method for the combination of compressed sensing and parallel imaging, to highly accelerate first-pass cardiac perfusion MRI without the need of strict breath-holding.