Table 1. Patient and tumor characteristics.
| Total | % | ||
|---|---|---|---|
| Patients | 31 | ||
| Lesions | 32 | ||
| Gender | Male | 15 | 48.4 |
| Female | 16 | 51.6 | |
| Age 1st SRS | Median (range) in years | 64.0 | (41.0–80.4) |
| Age Re-SRS | Median (range) in years | 64.86 | (42.6–81.3) |
| Karnofsky-Index at 1st SRS | Median (range) in % | 90 | (60–100) |
| Karnofsky-Index at Re-SRS | Median (range) in % | 90 | (60–100) |
| Primary tumor | |||
| (per lesion) | NSCLC | 10 | 31.3 |
| Melanoma | 5 | 15.6 | |
| Breast cancer | 10 | 31.3 | |
| Renal cell cancer | 1 | 3.1 | |
| Colorectal cancer | 1 | 3.1 | |
| Other | 5 | 15.6 | |
| Localization of recurrent lesions | |||
| Frontal | 9 | 28.1 | |
| Temporal | 2 | 6.3 | |
| Parietal | 7 | 21.9 | |
| Occipital | 1 | 3.1 | |
| Thalamus/mesencephalon | 3 | 9.4 | |
| Cerebellum | 9 | 28.1 | |
| Brainstem | 1 | 3.1 | |
| Time intervals between SRS-series | Median (range) in months | 12.4 | (3.2–88.2) |
Abbreviations: SRS: stereotactic radiosurgery, NSCLC: non-small cellular lung cancer.