Table 3 Summary of dosimetric results for Organs At Risk
Parameter | Patients | Parameter | 3DCRT | IMRT | VMAT | P value | ||
|---|---|---|---|---|---|---|---|---|
3DCRT vs IMRT | 3DCRT vs VMAT | IMRT vs VMAT | ||||||
Heart | 10/10 | Mean (Gy) | 8.3 ± 7.6 | 5.7 ± 3.7 | 6.5 ± 4.3 | 0.074 | 0.333 | 0.093 |
V25Gy (%) | 8.1 ± 14.3 | 3.6 ± 4.0 | 3.9 ± 4.9 | 0.310 | 0.735 | 0.917 | ||
V30Gy (%) | 5.6 ± 10.0 | 3.9 ± 5.4 | 2.3 ± 3.5 | 0.237 | 0.735 | 0.753 | ||
Lung | 10/10 | Mean (Gy) | 11.9 ± 7.9 | 9.4 ± 5.4 | 8.9 ± 4.5 | 0.014 | 0.017 | 0.386 |
V20Gy (%) | 21.0 ± 18.7 | 16.2 ± 12.4 | 12.1 ± 7.5 | 0.021 | 0.028 | 0.515 | ||
Right breast (contralateral breast) | 3/10 | Mean (Gy) | 3.3 ± 0.5 | 2.7 ± 0.5 | 3.5 ± 1.6 | 0.285 | 0.593 | 0.285 |
V10Gy (%) | 2.6 ± 3.0 | 2.7 ± 2.4 | 5.2 ± 7.7 | 1.000 | 1.000 | 0.655 | ||
V20Gy (%) | 1.4 ± 2.1 | 0.5 ± 0.8 | 0.4 ± 0.7 | 0.180 | 0.655 | 0.655 | ||
Left breast (ipsilateral breast) | 3/10 | Mean (Gy) | 19.7 ± 12.7 | 11.4 ± 6.8 | 11.1 ± 7.6 | 0.109 | 0.109 | 0.593 |
V10Gy (%) | 44.4 ± 36.2 | 38.9 ± 31.6 | 28.8 ± 20.4 | 0.180 | 0.285 | 0.593 | ||
V20Gy (%) | 28.9 ± 20.0 | 18.2 ± 13.6 | 15.7 ± 18.4 | 0.285 | 0.593 | 0.593 | ||