Table 2 Results of manual landmark registration for evaluation of the accuracy of the deformable image registration
| Â | CTplan versus CTFU | CTplan versus CTdeform | ||||
|---|---|---|---|---|---|---|
| Â | Average (mm) | StDev (mm) | 90th percentile (mm) | Average (mm) | StDev (mm) | 90th percentile (mm) |
GTV | 11.8 | ± 5.1 | 21 | 2.9 | ± 1.2 | 5.7 |
Carina | 6.0 | ± 3.2 | 10 | 4.5 | ± 2.5 | 6.5 |
Pulmonary landmarks - same lobe as GTV | 8.3 | ± 3.8 | 15 | 5.5 | ± 2.3 | 11 |
Pulmonary landmarks - different lobes as GTV | 8.0 | ± 3.8 | 13 | 6.3 | ± 2.8 | 13 |