Table 5.
The values of statistically significant r s of textural features to dose-volumetric parameter differences of prostate VMAT plans
| Contrast | Correlation | |||||||
|---|---|---|---|---|---|---|---|---|
| d = 1 | d = 10 | d = 1 | d = 10 | |||||
| d = 1 | d = 10 | d = 1 | d = 10 | |||||
| Dose-volumetric parameter | r s | p | r s | p | r s | p | r s | p |
| D20% of rectal wall | - | - | - | - | 0.485 | 0.030 | - | - |
| Mean dose to rectal wall | −0.493 | 0.027 | −0.473 | 0.035 | 0.446 | 0.048 | - | - |
| Mean dose to bladder | −0.456 | 0.043 | - | - | - | - | - | - |
| D50% of femoral heads | - | - | - | - | - | - | 0.448 | 0.047 |
Abbreviations: d = particular displacement distance, rs = Spearman’s rank correlation coefficient, Dn% = dose received by n% volume of structure.