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Comparison of perfusion imaging reconstructions—spatial and temporal characteristics. (a) Ground truth postcontrast image reconstructed using inverse Fourier transform from fully sampled k-space data. ROIs are shown in the myocardium and left ventricular blood pool. Corresponding R = 3.5 reconstruction with standard rank constraint (b) and with reordered rank constraint (c). (d) Mean intensity time curves from the blood pool and myocardium ROIs.
