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Normalized root mean square differences (NRMSDs) evaluated for HART extracted cumulative dose-volume histogram (cDVH) data points utilizing interpolation and optimal polynomial fitting techniques for five head and neck cancer patients.
| Structures or targets | Number of data points plotted in: | Percentage NRMSD values in: | ||
|---|---|---|---|---|
| cDVH curves | high dose gradients | interpolation | polynomial fit | |
| PTV1 | 501 | 45–50 | 1.2 ± 0.2 | 0.6 ± 0.1 |
| PTV2 | 501 | 47–52 | 1.2 ± 0.2 | 0.6 ± 0.1 |
| PTV3 | 501 | 46–54 | 0.5 ± 0.1 | 0.5 ± 0.1 |
