Table 1.
Demographic and tumor characteristics and radiotherapy planning details
| n (male: female) |
47 (26:21) |
| median age (range) |
49.68 years (2–88) |
| histology |
|
| meningioma |
14 |
| anaplastic astrocytoma |
11 |
| glioblastoma |
8 |
| oligodendroglioma |
5 |
| craniopharyngeoma |
4 |
| oligoastrocytoma |
1 |
| xantoastrocytoma |
2 |
| gliosarcoma |
1 |
| rhabdomyoid tumor |
1 |
| 3 D conformal plan a |
27 |
| micromultileaf collimator (m3) IMSRT a |
20 |
| total radiation dose (ICRU 50) |
|
| mean ± SD (range) |
55.19 ±3.77 (50–60) Gy |
| PTV volume |
|
| mean ± SD (range) |
79.13 ±66.62 (2.1-255.3) ml |
| topographic groups b (n) |
|
| A |
11 |
| B |
8 |
| C |
14 |
| D | 14 |
a: to fulfil of conventionally defined organs at risk constraints (see text).
b: according to the definition of [10].