Table 2.
Comparative evaluation of cranial defects reconstruction techniques (weighted scores within rounded squares)
| Evaluation metrics | Weight | Mirroring | Thin-plate spline deformation (TPS) | Free-form modelling | Template-based | Snake |
|---|---|---|---|---|---|---|
| Defect site | 0.00 | 3 (0.00) | 9 (0.00) | 9 (0.00) | 9 (0.00) | 9 (0.00) |
| Defect size | 0.20 | 6 (1.20) | 3 (0.60) | 6 (1.20) | 9 (1.80) | 6 (1.20) |
| Degree of skull asymmetry | 0.20 | 3 (0.60) | 9 (1.80) | 6 (1.20) | 9 (1.80) | 6 (1.20) |
| Set-up required | 0.10 | 3 (0.30) | 3 (0.30) | 9 (0.90) | 3 (0.30) | 6 (0.60) |
| User intervention | 0.05 | 6 (0.30) | 3 (0.15) | 3 (0.15) | 3 (0.15) | 9 (0.45) |
| Operational time | 0.05 | 6 (0.30) | 3 (0.15) | 3 (0.15) | 6 (0.30) | 9 (0.45) |
| Skills | 0.10 | 6 (0.60) | 6 (0.60) | 3 (0.30) | 6 (0.60) | 6 (0.60) |
| Quality | ||||||
|
Curvature Tangency Continuity |
0.10 0.10 0.10 |
9 (0.90) 3 (0.30) 3 (0.30) |
3 (0.30) 9 (0.90) 9 (0.90) |
6 (0.60) 9 (0.90) 9 (0.90) |
9 (0.90) 3 (0.30) 3 (0.30) |
3 (0.30) 3 (0.30) 9 (0.90 |
| Total score | 1.00 | 48 (4.80) | 57 (5.70) | 63 (6.30) | 60 (6.45) | 66 (6.00) |