Table 1.
Results of multi-atlas segmentation compared with best single-atlas segmentation for 10 leave-one-out tests. 3D-DSC and 3D-MSD measure the difference between the auto-segmented and manual contours.
| Test no. | Multi-atlas segmentation | Best single-atlas segmentation | ||
|---|---|---|---|---|
|
| ||||
| 3D-DSC (%) | 3D-MSD (mm) | 3D-DSC (%) | 3D-MSD (mm) | |
| 1 | 67.3 | 1.6 | 51.7 | 2.6 |
| 2 | 58.8 | 2.2 | 42.3 | 2.7 |
| 3 | 64.4 | 2.0 | 45.3 | 2.7 |
| 4 | 53.6 | 3.0 | 44.4 | 3.7 |
| 5 | 65.6 | 2.0 | 47.6 | 3.5 |
| 6 | 53.2 | 2.5 | 49.6 | 2.7 |
| 7 | 41.1 | 3.1 | 34.0 | 3.3 |
| 8 | 61.3 | 2.8 | 38.0 | 3.5 |
| 9 | 59.4 | 2.7 | 50.6 | 2.5 |
| 10 | 67.2 | 2.1 | 49.3 | 2.2 |
|
| ||||
| Mean | 59.2 | 2.4 | 45.3 | 2.9 |
| SD | 8.2 | 0.5 | 5.8 | 0.5 |
Abbreviations: 3D-DSC = three-dimensional Dice similarity coefficient; 3D-MSD = three-dimensional mean surface distance; SD = standard deviation.