Table 3.
Measured surface dose (mean ± SD of the mean) when 1‐cm Superflab bolus was placed on the contralateral breast of an anthropomorphic phantom and PMRT plans (VMAT, 4‐field IMRT and Tomotherapy) were delivered to the phantom. Doses, expressed in cGy, correspond to a total prescription dose of 50 Gy. The measurement locations are shown in Fig. 2
| Point | VMAT | 4‐field IMRT | Tomotherapy | ||||||
|---|---|---|---|---|---|---|---|---|---|
| No of bolus | With bolus | Difference (%) | No of bolus | With bolus | Difference (%) | No of bolus | With bolus | Difference (%) | |
| 1 | 323.1 ± 2.7 | 254.3 ± 2.2 | −21 | 764.4 ± 7.1 | 1282.3 ± 22.3 | 68 | 517.1 ± 7.2 | 532.2 ± 18.8 | 3 |
| 2 | 127.3 ± 2.0 | 88.3 ± 1.7 | −31 | 191.8 ± 3.0 | 78.5 ± 1.1 | −59 | 208.0 ± 2.2 | 209.4 ± 3.0 | 1 |
| 3 | 62.4 ± 2.7 | 63.4 ± 0.7 | 2 | 70.9 ± 2.4 | 31.5 ± 0.3 | −56 | 267.6 ± 8.3 | 271.9 ± 3.8 | 2 |
| 4 | 173.1 ± 4.3 | 140.6 ± 3.6 | −19 | 216.3 ± 6.3 | 81.8 ± 1.7 | −62 | 316.0 ± 3.4 | 320.5 ± 3.0 | 1 |
| 5 | 184.1 ± 2.5 | 160.1 ± 6.8 | −13 | 77.0 ± 0.9 | 36.0 ± 1.4 | −53 | 201.5 ± 2.2 | 212.7 ± 2.3 | 6 |