Table 2. Comparison of VAPs and VMPs OAR compliance with the dose constraints for different treatment sites.
| Site | Organ Dose Constraint | Auto-plan: mean ± Std. Dev | Manual plan: mean ± Std. Dev | p-value |
|---|---|---|---|---|
|
Head and neck |
Brain stem: Dmax ≤ 54 Gy | 43.6 ± 6.9 | 40.8 ± 13.2 | 0.28 |
| Left Lens: Dmax ≤ 10 Gy | 8.7 ± 7.5 | 5.7± 4.0 | 0.14 | |
| Right Lens: Dmax ≤ 10 Gy | 6.7 ± 4.8 | 5.4 ± 3.7 | 0.26 | |
| Spinal cord: Dmax ≤ 45 Gy | 42.2 ± 2.3 | 39.9 ± 5.7 | 0.06 | |
| Optic Chiasm: Dmax ≤ 54 Gy | 24.8 ± 21.7 | 25.6 ± 23.4 | 0.47 | |
|
Oesophagus |
Heart: V50Gy ≤ 33% | 4.3 ± 2.2 | 4.5 ± 1.3 | 0.42 |
| Heart: Dmean ≤ 26 Gy | 20.8 ± 2.6 | 19.0 ± 2.9 | 0.08 | |
| Combined Lungs: Dmean ≤ 20 Gy | 13.5 ± 1.9 | 14.8 ± 2.3 | 0.11 | |
| Left Lung: V40Gy ≤ 10% | 2.2 ± 1.4 | 2.3 ± 1.4 | 0.31 | |
| Right Lung: V40Gy ≤ 10% | 3.1 ± 1.7 | 3.7 ± 2.2 | 0.34 | |
| Spinal cord: Dmax ≤ 45 Gy | 38.6 ± 4.9 | 37.3 ± 7.6 | 0.33 | |
|
Breast |
Heart: Dmean ≤ 5.0 Gy | 4.0 ± 1.0 | 8.3 ± 1.4** | 0.01* |
| Combined Lungs: Dmean ≤ 10.0 Gy | 10.3 ±1.3** | 13.2 ± 0.8** | 0.01* | |
| Ipsilateral Lung: Dmean ≤ 12.0 Gy | 15.4 ± 2.0** | 19.5 ± 1.5** | 0.01* | |
| Contralateral Lung: Dmean ≤ 6.0 Gy | 3.6 ± 1.0 | 4.8 ± 0.9 | 0.01* | |
| Contralateral breast: Dmean ≤ 3.0 Gy | 2.0 ± 0.50 | 3.1± 1.6** | 0.02* | |
| Spinal Cord: Dmax ≤ 39.0 Gy | 6.0 ± 1.6 | 19.6 ± 2.3 | 0.01* | |
|
Prostate |
Rectum: V50Gy ≤ 50% | 16.5 ±4.3 | 30.6 ± 13.1 | 0.01* |
| Bladder: V50Gy ≤ 55% | 25.4 ± 8.9 | 28.0 ± 11.1 | 0.29 | |
| Right Femoral head: Dmax ≤ 50 Gy | 43.3 ± 3.5 | 45.7 ± 4.1 | 0.10 | |
| Left Femoral head: Dmax ≤ 50 Gy | 45.2 ± 3.7 | 45.9 ± 3.9 | 0.34 | |
| Penile Bulb: Dmean ≤ 51 Gy | 18.6 ± 12.9 | 24.3 ± 17.1 | 0.20 | |
| Bowel Bag: Dmax ≤ 52 Gy | 54.0± 0.6 | 54.7 ± 0.6 | 0.31 | |
|
Cervical |
Rectum: V30Gy ≤ 60% | 76.7 ± 18.9** | 78.0 ± 18.9** | 0.44 |
| Bladder: V45Gy ≤ 35% | 46.4 ± 12.8** | 51.6 ± 16.5** | 0.22 | |
| Bowel Bag: V40Gy ≤ 30% | 14.2 ± 6.9 | 16.7 ± 7.2 | 0.22 | |
| Right Femoral head: V30Gy ≤ 15% | 12.6 ± 7.6 | 13.8 ± 12.0 | 0.39 | |
| Left Femoral head: V30Gy ≤ 15% | 16.0 ± 7.2 | 16.3 ± 11.4 | 0.48 | |
|
Rectum |
Bladder: V40Gy ≤ 40% | 68.1 ± 21.2** | 74.9 ± 23.1** | 0.25 |
| Bowel Bag: V40Gy ≤ 30% | 14.2 ± 8.2 | 17.3 ± 10.0 | 0.22 | |
| Right Femoral head: Dmax ≤ 50 Gy | 42.8 ± 8.0** | 44.2 ± 5.8 | 0.32 | |
| Left Femoral head: Dmax ≤ 50 Gy | 45.4 ± 6.0** | 46.1 ± 4.0 | 0.39 |
p=statistical significance
*=p values < 0.05, ** = Dose constraint not fulfilled