Fig. 4From: Analysis of spatiotemporal fidelity in quantitative 3D first-pass perfusion cardiovascular magnetic resonanceArterial input functions (AIFs) derived from 3D MRXCAT simulations for different undersampling factors and signal intensity errors. AIFs from reconstructions using (a) k-t PCA and (b) k-t SPARSE-SENSE for fully sampled reference, and undersampling factors R = 2, 5, 10. Baseline (dashed red) and upslope limits (solid blue) are indicated in (a,b). c Zoom of the AIF baselines in (a), (b) as indicated by the dashed boxes. d-f Percentage error as a function of the undersampling factor in (d) baseline, (e) upslope and (f) peak signal. Error bars indicate mean and twice the standard deviation across 10 realizations of the simulationBack to article page