Table 1.
Magnitudes of daily setup shifts in the coronal plane based on EPID imaging for the left/right (L/R) and superior/inferior (S/I) directions.
| Fraction | L/R shift (cm) | S/I shift (cm) |
|---|---|---|
| 1 | 0.5 | 0.5 |
| 2 | 0.0 | 0.0 |
| 3 | 0.5 | 0.0 |
| 4 | 0.3 | 0.0 |
| 5 | 0.2 | 0.3 |
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