Table 1 Dose-volume parameters (a) and conformity indices (b) for the optimized planning target volume (PTV optim )
From: Whole breast radiotherapy in prone and supine position: is there a place for multi-beam IMRT?
D2[Gy] | D98[Gy] | Dose homogeneity [%] | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Prone | Supine | Prone | Supine | Prone | Supine | |||||||||||||
mean | SEM | SD | mean | SEM | SD | mean | SEM | SD | mean | SEM | SD | mean | SEM | SD | Mean | SEM | SD | |
(a) | ||||||||||||||||||
W-TF | 52.3 | 0.1 | 0.6 | 53.1 | 0.2 | 0.9 | 47.6 | <0.1 | 0.1 | 47.9 | <0.1 | 0.4 | 90.6 | 0.3 | 1.1 | 89.7 | 0.5 | 2.1 |
TF-IMRT | 52.0 | 0.2 | 0.8 | 52.6 | 0.2 | 0.8 | 47.8 | <0.1 | 0.3 | 47.9 | 0.1 | 0.5 | 91.8 | 0.4 | 1.7 | 90.7 | 0.5 | 2.3 |
MB-IMRT | 51.6 | 0.2 | 0.7 | 52.6 | 0.1 | 0.6 | 47.9 | <0.1 | 0.2 | 47.7 | <0.1 | 0.2 | 92.5 | 0.3 | 1.4 | 90.3 | 0.3 | 1.2 |
Jaccard index [%] | Dose-coverage index [%] | Mismatch index [%] | ||||||||||||||||
Prone | Supine | Prone | Supine | Prone | Supine | |||||||||||||
mean | SEM | SD | mean | SEM | SD | mean | SEM | SD | mean | SEM | SD | mean | SEM | SD | mean | SEM | SD | |
(b) | ||||||||||||||||||
W-TF | 74.9 | 2.0 | 8.5 | 52.9 | 3.6 | 15.2 | 97.2 | 0.2 | 1.0 | 96.2 | 0.6 | 2.4 | 23.9 | 2.0 | 8.6 | 46.8 | 3.6 | 15.4 |
TF-IMRT | 74.8 | 1.5 | 6.2 | 64.6 | 2.1 | 8.9 | 97.7 | 0.2 | 0.8 | 96.6 | 0.3 | 1.2 | 24.4 | 1.5 | 6.4 | 34.7 | 2.1 | 9.1 |
MB-IMRT | 77.1 | 1.4 | 5.9 | 70.5 | 1.6 | 6.7 | 97.8 | 0.1 | 0.6 | 96.5 | 0.2 | 1.0 | 22.1 | 1.4 | 6.0 | 28.5 | 1.6 | 6.8 |