Table 2.
Significant p-values using Mann–Whitney U test [comparing planning target volume (PTV) TREAT coverage parameters as given in Table 1]
| Variables | Comparisons |
|||
|---|---|---|---|---|
| Conv vs FIF | Conv vs HT-IMRT | Conv vs TD-3DCRT | Conv vs TD-IMRT | |
| Left PTV | ||||
| Mean | 0.019 | 0.035 | 0.000 | 0.023 |
| V90 | 0.023 | 0.000 | 0.089 | 0.002 |
| V107 | 0.009 | 0.218 | 0.529 | 0.631 |
| V110 | 0.481 | 0.529 | 0.001 | 0.001 |
| HI | 0.971 | 0.631 | 0.043 | 0.035 |
| Right PTV | ||||
| Mean | 0.001 | 0.280 | 0.000 | 0.001 |
| V90 | 0.035 | 0.004 | 0.000 | 0.000 |
| V107 | 0.000 | 0.000 | 0.004 | 0.023 |
| V110 | 0.063 | 0.193 | 0.529 | 0.089 |
| HI | 0.971 | 0.971 | 0.002 | 0.029 |
| Conformity index | 0.353 | 0.005 | 0.000 | 0.015 |
| Volume of body receiving >107% of prescribed dose | 0.001 | 0.015 | 0.063 | 0.863 |
3DCRT, three-dimensional conformal radiotherapy; conv, conventional; FIF, field in field; HI, homogeneity index; HT, helical tomotherapy; IMRT, intensity-modulated radiotherapy; TD, TomoDirect™; Vx, target volume receiving at least X% of prescribed dose.
Significant p-values are shown in bold.