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Treatment characteristics.
| Mean (range) | |
|---|---|
| Prescribed dose (Gy) in three treatments | 50 (42–60) |
| Prescription isodose line (%) | 80 (74–85) |
| 30 Gy isodose contour mean distance from the GTV (cm) | 1.90 (1.08–2.74) |
| Number of beams per treatment | 156 (79–242) |
| Number of paired X-ray verification images per treatment | 52 (26–81) |
| Treatment course (days) | 7 (5–11) |
| % Total lung volume receiving 15 Gy or more | 6.4 (2.2–13.6) |
