Table 3.
Effects caused by rotational setup error in the pitch direction using the feet‐first plan.
| Plan | Rotational SE (degrees) in pitch direction. (Average ± SD) | ||||||
|---|---|---|---|---|---|---|---|
| 1.0 | 2.0 | 3.0 | 4.0 | 5.0 | |||
| CTV | D98% (Gy) | 11.8 ± 0.0 | 11.6 ± 0.0* | 11.5 ± 0.0* | 11.4 ± 0.0* | 11.2 ± 0.0* | 10.9 ± 0.0* |
| D95% (Gy) | 11.9 ± 0.0 | 11.8 ± 0.0* | 11.7 ± 0.0* | 11.7 ± 0.0* | 11.6 ± 0.0* | 11.5 ± 0.0* | |
| D2% (Gy) | 12.6 ± 0.0 | 13.2 ± 0.1* | 14.1 ± 0.3* | 14.9 ± 0.4* | 15.3 ± 0.6* | 15.7 ± 0.7* | |
| V110% (%) | 0.1 ± 0.0 | 1.8 ± 0.8* | 5.3 ± 2.4* | 7.9 ± 3.2* | 10.1 ± 4.6* | 11.7 ± 6.0* | |
| V90% (%) | 100.0 ± 0.0 | 99.9 ± 0.2* | 99.6 ± 0.1* | 99.4 ± 0.1* | 99.0 ± 0.1* | 98.3 ± 0.1* | |
| CTVbs | D98% (Gy) | 11.6 ± 0.0 | 11.1 ± 0.0* | 10.8 ± 0.1* | 10.7 ± 0.0* | 10.3 ± 0.0* | 9.6 ± 0.2* |
| D2% (Gy) | 12.7 ± 0.0 | 13.8 ± 0.2* | 15.0 ± 0.5* | 15.6 ± 0.6* | 16.0 ± 0.8* | 16.1 ± 0.9* | |
P < 0.05.