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In vivo experiment with retrospective undersampling. Data was retrospectively undersampled by factors of 16.0, 23.8, and 38.2 and reconstructed with RPCA and bin-by-bin CS to show the impact of the separation induced by the additional regularization term used in RPCA. RPCA images appear sharp and higher acceleration mostly degrades SNR without other artifacts, while bin-by-bin CS images show blurring and an artificial appearance (white arrows).
