Table 2.
Statistical analysis (Wilcoxon Signed-Rank test) results of the comparison between the pCT metrics of VMAT and IMPT (boost and non-boost cases) for all seven patients. The value in each cell is the median of the metric values for IMPT and VMAT for both arms. The bold-faced values indicate a significant difference (p < 0.05) in favour of IMPT, while the underlined values are in favour of VMAT.
| Rectum |
Bladder | PTV |
Index |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Arm | Modality | NTCP (%) |
D1cm3 (Gy) |
V70Gy (%) |
NTCP (%) |
D95% (Gy) |
DMEAN (Gy) |
D95% (Gy) |
DMEAN (Gy) |
| Boost | VMAT | 4 | 73.8 | 8.1 | 18 | 73.4 | 77.5 | 92.0 | 96.3 |
| IMPT | 3 | 73.5 | 6.4 | 20 | 73.9 | 77.0 | 91.1 | 94.6 | |
| Non-boost | VMAT | 4 | 73.6 | 9.3 | 19 | 73.7 | 77.4 | – | – |
| IMPT | 3 | 73.3 | 6.4 | 22 | 73.8 | 76.7 | – | – | |