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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: J Magn Reson. 2018 Mar 11;290:46–59. doi: 10.1016/j.jmr.2018.03.006

Table 2.

Comparison of the different sparsifying transforms on all three 3D retrospectively undersampled datasets. Comparison to the ground truth was done after retaining only the top 10% of sparsifying coefficients.

TempFFT Wavelet TV PCA
3D Dataset 1
nRMSE 0.3638 0.2968 0.4983 0.2712
SSIM 0.7053 0.7486 0.6484 0.7586
3D Dataset 2
nRMSE 0.1944 0.1562 0.3016 0.092
SSIM 0.6772 0.6618 0.6138 0.8941
3D Dataset 3
nRMSE 0.1497 0.1777 0.3614 0.0631
SSIM 0.7581 0.7177 0.5875 0.88