Table 2.
The Volume (cc) and Volume change ratio (VCR) (%) changes of Target.
| Target | Plan (0 Gy) | 1st week (10 Gy) | 2nd week (20 Gy) | 3rd week (30 Gy) | 4th week (40 Gy) | 5th week (50 Gy) |
|---|---|---|---|---|---|---|
| VGTV (cc) | 130.66± 63.06 | 126.74 ± 65.00 | 112.08 ± 60.60** | 101.86 ± 52.44*** | 92.12 ± 47.22*** | 90.66 ± 46.10*** |
| VCRGTV (%) | 0 | −3.45 ± 10.38% | −15.24 ± 2.93%** | −21.63 ± 2.33%** | −29.21 ± 3.96%** | −30.26 ± 11.31%** |
| VCTV1 (cc) | 276.70 ± 98.23 | 271.45 ± 95.24 | 260.00 ± 93.92** | 252.74 ± 90.54** | 246.75 ± 87.24** | 245.92 ± 87.37** |
| VCRCTV1 (%) | 0 | −0.85 ± 3.28% | −5.73 ± 6.47%** | −8.21 ± 6.95%** | −10.34 ± 7.58%** | −10.66 ± 7.52%** |
| VCTV2 (cc) | 472.87 ± 117.74 | 462.73 ± 108.60 | 460.56 ± 109.19 | 452.10 ± 103.84* | 444.56 ± 99.69* | 443.79 ± 99.14** |
| VCRCTV2 (%) | 0 | −1.51 ± 6.17% | −2.05 ± 7.32% | −3.74 ± 7.17% | −5.18 ± 7.87%* | −5.28 ± 8.15%* |
All were compared with plan levels.
*P < 0.05, **P < 0.01, ***P < 0.001, using Wilcoxon signed-rank test.
VCR, volume change ratio; VGTV, volume of GTV; VCTV1, volume of CTV1; VCTV2, volume of CTV2.