TABLE IV:
Comparison of RMSE and SSIM for different algorithms for undersampled data with 20 dB measurement SNR, for the simulation study, computed on an ensemble of 50 images. The values outside the parentheses denote the ensemble mean values of the metric, where as the values inside the parentheses denote the standard deviation (SD) of the metric.
| Algorithm | Knee (in dist.) 8x | Knee (in dist.) 20x | Brain (in dist.) 8x | Brain (in dist.) 20x | ||||
|---|---|---|---|---|---|---|---|---|
| RMSE mean (RMSE SD) | SSIM mean (SSIM SD) | RMSE mean (RMSE SD) | SSIM mean (SSIM SD) | RMSE mean (RMSE SD) | SSIM mean (SSIM SD) | RMSE mean (RMSE SD) | SSIM mean (SSIM SD) | |
| PLS-TV | 0.0122 (0.0033) |
0.9736 (0.0108) |
0.0178 (0.0050) |
0.9556 (0.0172) |
0.0228 (0.0033) |
0.9609 (0.0093) |
0.0473 (0.0098) |
0.8798 (0.0337) |
|
| ||||||||
| CSGM-GAN | 0.0381 (0.0157) |
0.8808 (0.0485) |
0.0389 (0.0154) |
0.8753 (0.0470) |
0.0721 (0.0318) |
0.8174 (0.0633) |
0.0725 (0.0249) |
0.8153 (0.0598) |
|
| ||||||||
| IAGAN-TV |
0.0099 (0.0026) |
0.9844 (0.0064) |
0.0140 (0.0041) |
0.9705 (0.0135) |
0.0148 (0.0024) |
0.9794 (0.0061) |
0.0246 (0.0043) |
0.9483 (0.0146) |
|
| ||||||||
| INN Proj. TV | 0.0102 (0.0027) |
0.9829 (0.0070) |
0.0147 (0.0042) |
0.9678 (0.0137) |
0.0163 (0.0028) |
0.9723 (0.0086) |
0.0262 (0.0049) |
0.9414 (0.0177) |