Table 5 Dose loss due to shoulder shifts
| Â | Â | Frequency for losses of: | ||
|---|---|---|---|---|
Shift | Dose lost per fraction (cGy) | 1 Gy | 2 Gy | 3 Gy |
5 mm superior | -3 | 33 | -- | -- |
15 mm superior | -11 | 9 | 18 | 27 |
15 mm posterior | -5 | 20 | -- | -- |
5 mm superior + 15 mm posterior | -8 | 13 | 25 | -- |
15 mm superior + 15 mm posterior | -16 | 6 | 13 | 19 |