Table 1.
Statistical analysis of the reconstructed two‐dimensional brain phantom with the 2e 7 count level and 20 noise realizations.
| Whole | ROI 1 | ROI 2 | ROI 3 | |
|---|---|---|---|---|
| MAE | ||||
| Pixel | 5.7059 ± 0.0449 | 8.3931 ± 0.6415 | 6.9348 ± 0.1660 | 7.3641 ± 0.1989 |
| Pixel + filter | 4.8590 ± 0.0349 | 4.7517 ± 0.2398 | 5.3207 ± 0.0877 | 6.2350 ± 0.0940 |
| Patch | 4.7213 ± 0.0365 | 5.7831 ± 0.2989 | 5.5695 ± 0.1070 | 6.0904 ± 0.1195 |
| Patch + filter | 4.5758 ± 0.0230 | 4.5750 ± 0.1807 | 5.0902 ± 0.0639 | 5.9397 ± 0.0787 |
| AD | 4.4745 ± 0.0495 | 5.1743 ± 0.8326 | 5.0584 ± 0.1535 | 5.7824 ± 0.1685 |
| Patch‐DL | 4.3283 ± 0.0333 | 3.8760 ± 0.1928 | 4.8036 ± 0.0504 | 5.5881 ± 0.1121 |
| P value (patch‐DL vs AD) | <0.01 | <0.01 | <0.01 | <0.01 |
| CORR | ||||
| Pixel | 0.8771 ± 0.0024 | 0.3587 ± 0.0288 | 0.8905 ± 0.0096 | 0.8624 ± 0.0101 |
| Pixel + filter | 0.9137 ± 8.5902e‐04 | 0.5499 ± 0.0343 | 0.8818 ± 0.0035 | 0.9051 ± 0.0026 |
| Patch | 0.9180 ± 0.0011 | 0.5430 ± 0.0278 | 0.8760 ± 0.0040 | 0.9108 ± 0.0031 |
| Patch + filter | 0.9234 ± 5.6424e‐04 | 0.5957 ± 0.0254 | 0.8933 ± 0.0028 | 0.9163 ± 0.0017 |
| AD | 0.9211 ± 0.0019 | 0.5399 ± 0.0625 | 0.8869 ± 0.0075 | 0.9099 ± 0.0062 |
| Patch‐DL | 0.9262 ± 8.1519e‐04 | 0.6647 ± 0.0269 | 0.8989 ± 0.0020 | 0.9184 ± 0.0024 |
| P value (patch‐DL vs AD) | <0.01 | <0.01 | <0.01 | <0.01 |
| RMSE | ||||
| Pixel | 8.4625 ± 0.0883 | 10.9409 ± 0.7150 | 9.3839 ± 0.2651 | 10.4620 ± 0.4015 |
| Pixel + filter | 7.1074 ± 0.0332 | 6.5841 ± 0.2558 | 7.2368 ± 0.0978 | 8.7842 ± 0.1059 |
| Patch | 6.8801 ± 0.0432 | 7.3881 ± 0.3222 | 7.3992 ± 0.1168 | 8.4226 ± 0.1366 |
| Patch + filter | 6.7115 ± 0.0231 | 6.2350 ± 0.1842 | 6.9040 ± 0.0813 | 8.2760 ± 0.0758 |
| AD | 6.7541 ± 0.0772 | 7.3017 ± 1.0949 | 7.0761 ± 0.2260 | 8.4625 ± 0.2855 |
| Patch‐DL | 6.5836 ± 0.0345 | 5.5962 ± 0.1987 | 6.7406 ± 0.0565 | 8.1558 ± 0.1020 |
| P value (patch‐DL vs AD) | <0.01 | <0.01 | <0.01 | <0.01 |