Table 1.
Registration parameters for the different matching methods.
| Chamfer match | Dual registration tool, first step | Dual registration tool, second step | Manual matchinga | |
|---|---|---|---|---|
| Method | Bone (T + R) | Bone (T + R) | Grey value (T + R) | Manual |
| Matching region: PI b | Pelvic bone | Pelvic bone | CTV + 0.5 cm | Fiducial markers |
| Matching region: PBI b | Pelvic bone | Pelvic bone | CTV + 0 cm | Pubic symphysis |
| Reference point for correction (RPC) | Center of the PTV | Center of the PTV | Center of the PTV | N/A |
T: translation; R: rotation; PI: Prostate irradiation; PBI: Prostate bed irradiation; N/A: Not applicable.
a
Manual matching by RTT for corrections after CM, and manual matching by RO for the golden standard reference.
b
Matching region: ROI for chamfer match and Dual Registration; Reference structure of matching for manual matching.