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Five SABR lung cancer patients with central lung tumors were chosen. The motion amplitude was measured by taking the vector differences between the centroids of the GTV0 and the GTV50 (End‐exhale)
| Patient | Prescription/no. fractions | Motion amplitude (cm) | GTV volume (cm3) | Tumor location |
|---|---|---|---|---|
| 1 | 52 Gy/4 | 1.74 | 15.19 | Central right |
| 2 | 50 Gy/5 | 0.12 | 6.09 | Central left |
| 3 | 50 Gy/5 | 0.25 | 21.33 | Central right |
| 4 | 50 Gy/5 | 0.86 | 1.29 | Central right |
| 5 | 50 Gy/5 | 0.18 | 12.01 | Central right |
