Table 3.
Quantitative evaluation of the segmentation results overall (n = 143) and per subvolume, reported as mean ± standard deviation. DSC is Dice similarity coefficient, HD is Hausdorff distance, MHD is modified HD, 95% HD is 95th percentile HD, CMD is contour mean distance and AVD is absolute volume difference.
| Overall (n = 143) | Subvolume 1 (n = 23) | Subvolume 2 (n = 29) | Subvolume 3 (n = 33) | Subvolume 4 (n = 33) | Subvolume 5 (n = 25) | |
|---|---|---|---|---|---|---|
| DSC | 0.91 ± 0.07 | 0.91 ± 0.06 | 0.91 ± 0.08 | 0.90 ± 0.08 | 0.92 ± 0.07 | 0.93 ± 0.07 |
| HD (mm) | 8.05 ± 3.46 | 8.74 ± 3.20 | 7.64 ± 2.82 | 7.20 ± 2.56 | 7.14 ± 2.81 | 10.20 ± 4.85 |
| MHD (mm) | 0.23 ± 0.22 | 0.30 ± 0.25 | 0.22 ± 0.21 | 0.26 ± 0.24 | 0.18 ± 0.16 | 0.20 ± 0.22 |
| 95% HD (mm) | 1.32 ± 1.67 | 2.14 ± 2.06 | 1.33 ± 1.76 | 1.49 ± 1.73 | 0.93 ± 1.16 | 0.82 ± 1.27 |
| CMD (mm) | 0.26 ± 0.24 | 0.37 ± 0.30 | 0.23 ± 0.21 | 0.27 ± 0.24 | 0.20 ± 0.17 | 0.28 ± 0.27 |
| AVD (%) | 14.17 ± 18.90 | 11.51 ± 13.80 | 14.96 ± 22.26 | 19.48 ± 23.06 | 11.83 ± 13.53 | 11.76 ± 17.11 |
| Sensitivity | 0.938 | 0.931 | 0.946 | 0.941 | 0.897 | 0.966 |
| Specificity | 0.997 | 0.995 | 0.998 | 0.998 | 0.998 | 0.997 |
| Accuracy | 0.995 | 0.992 | 0.997 | 0.996 | 0.994 | 0.996 |