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Impact of optimization strategies for parallel MRI recovery of the brain images using 2-D sampling. The PSNR and SSIM values are reported for the average ± std. of 200 test slices at 6x acceleration factor.
| PSNR | SSIM | |||
|---|---|---|---|---|
| Optimize | UNET | MoDL | UNET | MoDL |
| Φ-alone | 27.34 ± 1.14 | 34.19 ± 1.03 | 0.82 ± 0.02 | 0.94 ± 0.01 |
| Θ-alone | 28.56 ± 0.93 | 37.47 ± 0.57 | 0.85 ± 0.02 | 0.94 ± 0.01 |
| Joint | 34.31 ± 0.81 | 37.60 ± 0.56 | 0.94 ± 0.01 | 0.96 ± 0.01 |
