ACS reconstruction performance under different acceleration factors in the external validation dataset
(A) Representative T1w FLAIR and T2w FLAIR head images reconstructed from fully sampled k-space data from the external validation dataset and from down-sampled k-space data with acceleration factors of 2, 3, and 4 using ACS and PI methods.
(B) NRMSE of ACS- and PI-reconstructed images under different acceleration factors for external validation dataset. Statistical analyses are performed using paired t tests (n = 78), ∗∗∗p < 0.001. Significant differences are observed in all acceleration factors.
See also Table S4.