Table 1.
Population characteristics.
| Treatment target | ||
|---|---|---|
| Description | Primary tumor | Lymph nodes |
| Total number of patients | 17 | 14 |
| With pathology-induced changes | ||
| Atelectasis | 5 | 5 |
| Pleural effusion | 2 | 2 |
| Number of patients with: | ||
| 1 Contoured target | 16 | 9 |
| 2 Contoured targets | 1 | 4 |
| 3 Contoured targets | 0 | 1 |
| Number of imaging sessions | 4–7 | 4–7 |
| Total number of CT scans | 99 | 83 |
| Number of registrations | 82 | 69 |
| Target volume: | ||
| Average ± St dev (cm3) | 67.8 ± 83.0 | 5.7 ± 7.2 |
| Range (cm3) | 0.4–377.4 | 0.2–27.0 |
| Change per weeka | −7.6%(R2 = 0.28, p < 1 × 10−6) | −6.5%(R2 = 0.17, p < 1 × 10−3) |
a
As determined from linear regression between normalized tumor volume (relative to week 1 for each patient) and treatment week.