The PSNR and NRMSE of synthetic FLAIR and DL-FLAIR images against conventional FLAIR images in various regionsa
| Synthetic FLAIR Images | DL-FLAIR Images | |
|---|---|---|
| GM | ||
| PSNR | 27.16 ± 0.54b,c | 34.03 ± 1.33b,c (+25.31%) |
| NRMSE | 0.47 ± 0.039b,c | 0.33 ± 0.028b,c (−30.44%) |
| WM | ||
| PSNR | 29.51 ± 0.44b,c | 35.45 ± 1.48b,c (+20.14%) |
| NRMSE | 0.37 ± 0.025b,c | 0.27 ± 0.024b,c (−27.32%) |
| CSF | ||
| PSNR | 34.83 ± 1.37b,c | 40.47 ± 1.37b,c (+16.21%) |
| NRMSE | 0.29 ± 0.027b,c | 0.21 ± 0.017b,c (−27.36%) |
| Aggregate intracranial tissues | ||
| PSNR | 29.79 ± 0.71b | 35.90 ± 1.21b (+20.54%) |
| NRMSE | 0.38 ± 0.024b | 0.27 ± 0.016b (−28.66%) |
a
Values are means ± SD. Percentage changes in the PSNR and NRMSE for DL-FLAIR vs synthetic FLAIR images are in parentheses.
b
P < .001 for synthetic FLAIR vs DL-FLAIR images.
c
P < .001 for GM vs WM, GM vs CSF, and WM vs CSF.