Table 6.
Mean ± standard deviation results comparing algorithmic three-dimensional (3D) reconstructed femoral articular cartilage surfaces to manual 3D segmentations generated by rater 1 and rater 2 for healthy volunteer knee images.
| Segmentation | Recall (%) | Precision (%) | DSC (%) | MSD (mm) | HD (mm) | A/VPD (%) | |
|---|---|---|---|---|---|---|---|
| Rater 1 | U-Net | 72.0 ± 6.3 | 74.8 ± 6.1 | 73.1 ± 3.9 | 0.29 ± 0.05 | 1.55 ± 0.67 | 10.4 ± 6.0 |
| U-Net++ | 70.5 ± 3.1 | 74.5 ± 2.7 | 72.3 ± 1.6 | 0.30 ± 0.03 | 1.29 ± 0.27 | 9.54 ± 10.4 | |
| Rater 2 | U-Net | 71.4 ± 5.7 | 74.3 ± 8.1 | 72.3 ± 2.8 | 0.32 ± 0.15 | 2.69 ± 2.92 | 14.2 ± 11.0 |
| U-Net++ | 74.5 ± 3.7 | 75.0 ± 4.8 | 74.4 ± 1.7 | 0.31 ± 0.06 | 1.76 ± 0.99 | 11.3 ± 4.8 |