Figure 1
Figure 2
Figure 3
SBRT treatment parameters
| Case 1 | Case 1 | Case 2 | Case 3 | Case 4 | |
|---|---|---|---|---|---|
| 1st course | 2nd course | ||||
| Prescribed dose (Gy), number of fractions | 54 Gy, 3 | 54 Gy, 3 | 60 Gy, 5 | 54 Gy, 3 | 60 Gy, 5 |
| MLD – both lungs (Gy) | 3.3 | 3.6 | 4.4 | 2.5 | 6 |
| V5 – both lungs, (%) | 15.6 | 21.5 | 18.9 | 10.2 | 27.1 |
| V20 – both lungs, (%) | 4.9 | 3.2 | 5.7 | 2.9 | 8 |
| MLD – transplanted lung (Gy) | 4.5 | 0.8 | 2.2 | 0.6 | 1.8 |
| V5 – transplanted lung, (%) | 20.4 | 1.4 | 9.6 | 0.1 | 6.1 |
| V20 – transplanted lung, (%) | 7 | 0 | 2.3 | 0 | 0 |
Dose-volume histogram constraints for organs at risk
| Organ | Constraints |
|---|---|
| Total Lung Dose (both lungs) | V20 < 10% |
| Spinal Cord | Max dose < 18 Gy |
| Esophagus | Dose to 1cc < 27 Gy |
| Heart | Dose to 1cc < 30 Gy |