Table 2 Mean dose and percentage of volume of heart, lungs and right breast irradiated
Organs at Risk | CT-based cumulative dose plan | Conventional cumulative dose plan | p-values |
|---|---|---|---|
Heart | Â | Â | Â |
   Volume ≥ 30 Gy (%) | 3.6 (0.0 – 10.9) | 1.4 (0.0 – 7.9) | < 0.001 |
   Volume ≥ 20 Gy (%) | 5.1 (0.0 – 14.0) | 1.9 (0.0 – 9.5) | < 0.001 |
   Volume ≥ 10 Gy (%) | 9.0 (0.0 – 22.7) | 4.9 (0.0 – 18.0) | < 0.001 |
   Volume ≥ 5 Gy (%) | 27.4 (9.5 – 57.4) | 20.5 (0.0 – 47.7) | < 0.001 |
   Mean dose (Gy) | 5.5 (2.5 – 10.8) | 4.0 (1.4 – 9.0) | < 0.001 |
Lungs | Â | Â | Â |
   Volume ≥ 30 Gy (%) | 4.7 (1.2 – 10.1) | 3.5 (0.0 – 9.1) | 0.014 |
   Volume ≥ 20 Gy (%) | 5.6 (1.7 – 11.1) | 4.2 (0.2 – 10.2) | 0.006 |
   Volume ≥ 10 Gy (%) | 8.2 (2.6 – 14.2) | 6.7 (2.5 – 14.1) | 0.010 |
   Volume ≥ 5 Gy (%) | 16.6 (5.2 – 28.1) | 14.7 (7.3 – 26.6) | 0.006 |
   Mean dose (Gy) | 4.7 (2.0 – 8.4) | 4.0 (2.1 – 7.4) | 0.011 |
Right breast | Â | Â | Â |
   Volume ≥ 30 Gy (%) | 0.1 (0.0 – 0.9) | 0.0 (0.0 – 0.0) | ns |
   Volume ≥ 20 Gy (%) | 0.2 (0.0 – 2.9) | 0.0 (0.0 – 0.0) | ns |
   Volume ≥ 10 Gy (%) | 0.3 (0.0 – 4.7) | 0.0 (0.0 – 0.2) | ns |
   Volume ≥ 5 Gy (%) | 0.8 (0.0 – 7.8) | 0.2 (0.0 – 1.8) | ns |
   Mean dose (Gy) | 0.9 (0.3 – 2.7) | 0.9 (0.5 – 1.7) | ns |