Table 2.
Treatment characteristics.
| Characteristics | n (%) |
|---|---|
| Stereotactic radiosurgery | |
| Median tumor volume (cm3) | 0.688 |
| Range tumor volume (cm3) | 0.056–33.57 |
| Median number of beams | 202 |
| Median number of monitor units | 14741.26 |
| Median dose per fraction (Gy) | 22 |
| Range dose per fraction (Gy) | 5–22 |
| Median total dose (Gy) | 22 |
| Range total dose (Gy) | 12–30 |
| Median number of fractions | 1 |
| Range number of fractions | 1–5 |
| Median coverage (%) | 96.39 |
| Median isodose line (%) | 76 |
| Range isodose line (%) | 58–89 |
| Median conformality index | 1.3 |
| Median homogeneity index | 1.32 |
| Median minimum dose (Gy) | 2037.18 |
| Median maximum dose (Gy) | 2822.02 |
| Surgical resection | |
| N (patients) | 24 |
| Gross total resection | 22 (91.7) |
| Subtotal resection | 2 (8.3) |
| Whole-brain radiation therapy (WBRT) | |
| N total | 12 (18.2) |
| N WBRT prior to SRS | 6 (9.1) |
| N WBRT after SRS | 6 (9.1) |
| Median total dose (Gy) | 30 |
| Dose range (Gy) | 20–37.5 |
| Median dose for WBRT prior to SRS (Gy) | 30 |
| Dose range for WBRT prior to SRS (Gy) | 20–30 |
| Systemic therapy | |
| N (patients) | 56 (84.8) |
| Standard | 25 (44.6) |
| Experimental | 5 (9) |
| Both | 26 (46.4) |