Region adaptive motion compensated dynamic CS for cardiac perfusion imaging

One of important applications of dynamic contrast-enhanced (DCE) MRI is to observe brain tissue dynamics. In this work, we applied a dynamic compressed sensing (CS) with patch-based non-convex low-rank penalty1 for 3D DCE-MRI to exploit temporal redundancy of the dynamic images to improve the spatiotemporal resolution of the conventional GRAPPA2 reconstruction. Experiments show that the proposed method provided improved spatio-temporal resolution than GRAPPA reconstruction.

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