Table 3 Summary of Organs at risk dosimetric analysis from Dose Volume histograms
Parameter | Objective | IMPT | RA | p (wilcoxon) |
|---|---|---|---|---|
Spinal cord: 41.6 ± 15.6 cm3 | ||||
D1% [Gy] | Minimize | 15.9 ± 5.6 22% | 20.3 ± 5.2 | < 0.01 |
Left breast: 467.5 ± 233.9 cm3 | ||||
Mean [Gy] | Minimize | 0.6 ± 0.9 83% | 3.5 ± 2.8 | < 0.01 |
D1% [Gy] | Minimize | 6.3 ± 6.6 | 11.9 ± 5.3 | < 0.01 |
Right breast: 494.6 ± 247.4 cm3 | ||||
Mean [Gy] | Minimize | 0.7 ± 1.7 81% | 3.7 ± 3.8 | < 0.01 |
D1% [Gy] | Minimize | 4.9 ± 9.2 | 1.9 ± 7.3 | < 0.01 |
Lungs: 4540.0 ± 1538.3 cm3 | ||||
Mean [Gy] | <15Gy | 4.3 ± 1.8 46% | 7.9 ± 3. | < 0.01 |
D1% [Gy] | Minimize | 30.0 ± 0.6 | 28.7 ± 1.0 | < 0.01 |
V20Gy [%] | < 20% | 6.7 ± 3.4 | 9.8 ± 7.5 | < 0.01 |
V15Gy [%] | Minimize | 9.7 ± 5.0 | 18.2 ± 13.1 | < 0.01 |
V10Gy [%] | Minimize | 15.0 ± 7.5 | 32.9 ± 18.6 | < 0.01 |
V5Gy [%] | Minimize | 27.8 ± 11.7 | 52.7 ± 18.8 | < 0.01 |
Heart 554.8 ± 146.2 cm3 | ||||
Mean [Gy] | Minimize | 4.1 ± 3.9 38% | 6.6 ± 4.6 | < 0.01 |
D1% [Gy] | Minimize | 26.3 ± 8.9 | 26.8 ± 8.6 | < 0.01 |
Heart wall 133.6 ± 25.9 cm3 | ||||
Mean [Gy] | <5Gy | 2.9 ± 4.0 40% | 4.9 ± 4.7 | < 0.01 |
D1% [Gy] | Minimize | 20.8 ± 11.5 | 21.9 ± 10.9 | 0.05 |
Healthy tissue | ||||
Mean [Gy] | Minimize | 2.3 ± 1.5 49% | 4.5 ± 2.1 | < 0.01 |
V10Gy [%] | Minimize | 8.5 ± 6.8 48% | 16.3 ± 10.7 | < 0.01 |
CI90% | Minimize | 1.2 ± 0.1 | 1.2 ± 0.1 | n.s. |