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Corrected margins in centimeters (cm). Prostate margins were obtained for 26 of the 27 patients, nodal margins for 21 of the 27 patients. Excluded patients had mesh import problems. ROI-ROI margins were increased by 0.05 cm and ROI-isodose margins by 0.1 cm, to correct for measurement bias (see text).
| CTV to PTV | CTV to PTVMinDose | CTVNodes to PTVNodesMinDose | |
|---|---|---|---|
| Margin μ ± σ | 0.57 ± 0.07 | 1.04 ± 0.27 | 0.89 ± 0.27 |
| Margin range | 0.22:0.73 | 0.55:3.03 | 0.16:2.81 |
