Rectum | IMRT | IMPT | p value | ||
Metric | Average | STDEV | Average | STDEV | |
Dmean (Gy/CGE) | 21.0% | 5.0% | 12.8% | 6.1% | <0.0001 |
D50% | 11.4% | 4.2% | 1.6% | 3.1% | <0.0001 |
D35% | 18.1% | 5.3% | 5.9% | 8.1% | <0.0001 |
D25% | 28.2% | 6.4% | 13.7% | 13.8% | 0.0007 |
D15% | 44.1% | 9.6% | 31.2% | 19.7% | 0.0141 |
D2cc | 77.8% | 15.3% | 79.3% | 15.5% | 0.6435 |