Bounce (-) (n=150) | Bounce (+) (n=50) | P value | |
---|---|---|---|
(mean ± SD) | (mean ± SD) | (t-test) | |
Prostate volume at postdosimetry (mL) | 27.3 ± 8.7 | 29.0 ± 8.9 | 0.233 |
%D90 (%) | 110.6 ± 9.9 | 109.7 ± 9.1 | 0.577 |
D90 (Gy) | 152.3 ± 24.5 | 153.3 ± 19.4 | 0.772 |
V100 (%) | 93.7 ± 3.6 | 93.5 ± 3.6 | 0.700 |
V150 (%) | 62.3 ± 10.4 | 62.1 ± 10.3 | 0.881 |
R100 (mL) | 0.10 ± 0.19 | 0.08 ± 0.10 | 0.668 |
Urethral volume (mL) | 0.53 ± 0.28 | 0.41 ± 0.23 | 0.004 |
%UD90 (%) | 97.6 ± 12.8 | 101.8 ± 12.7 | 0.049 |
UD90 (Gy) | 134.1 ± 24.5 | 142.5 ± 23.6 | 0.035 |
%UD30 (%) | 140.2 ± 18.0 | 143.8 ± 22.3 | 0.256 |
Minimal urethral dose (Gy) | 100.9 ± 21.6 | 111.3 ± 22.2 | 0.004 |
BED (Gy2) | 188.5 ± 25.2 | 177.0 ± 23.2 | 0.005 |