Table 1.
Patient characteristics
| Characteristic | Value |
|---|---|
| Total no. of patients | 27 |
| Men/women | 18/9 |
| Age (years), median (range) | 65 (32–88) |
| KPS, mean (range) | 61 (30–90) |
| RTOG-RPA classification | |
| Class 1 | 0 |
| Class 2 | 9 |
| Class 3 | 18 |
| No. of intracranial lesions, median (range) | 2 (1–6) |
| Location | |
| Supratentorial | 13 |
| Infratentorial | 15 |
| Primary tumors | |
| Lung | 17 |
| Breast | 4 |
| Colon and rectum | 4 |
| Esophagus | 1 |
| Ovary | 1 |
| Procedures prior to GKS | |
| Craniotomy | 6 |
| Ommaya reservoir | 3 |
| WBRT | 2 |
RTOG Radiation Therapy Oncology Group, RPA recursive partitioning analysis, GKS Gamma Knife surgery, WBRT whole-brain radiation therapy