Table 1 Characteristics of the 297 meningioma patients analyzed
From: Linac-based stereotactic radiotherapy and radiosurgery in patients with meningioma
Overall collective | Group 1 | Group 2 | |||||
|---|---|---|---|---|---|---|---|
(n = 297) | U/WHO1 | WHO2/3 | |||||
(n = 265) | (n = 32) | ||||||
Mean | Min/Max | Mean | Min/Max | Mean | Min/Max | ||
Age with beginn of RT | 59 | 20/87 | 59 | 20/87 | 60.13 | 38/76 | |
Mean volume | 15.01 | 0.26/190.85 | 15.77 | 0.26/190.85 | 6.62 | 0.84/27.42 | |
n | % | n | % | n | % | ||
Gender | m | 95 | 32 | 75 | 28.3 | 20 | 62.5 |
f | 202 | 68 | 190 | 71.7 | 12 | 37.5 | |
Location | Skull Base | 254 | 85.5 | 246 | 92.8 | 8 | 25 |
Falx/Parasagittal | 20 | 6.7 | 10 | 3.8 | 10 | 31.3 | |
Convexity | 23 | 7.7 | 9 | 3.4 | 14 | 43.8 | |
WHO grading | n/a | 215 | 72.4 | 215 | 81.2 | - | - |
WHO 1 | 50 | 16.8 | 50 | 18.9 | - | - | |
WHO 2 | 20 | 6.7 | - | - | 20 | 62.5 | |
WHO 3 | 12 | 4.0 | - | - | 12 | 37.5 | |
Prior surgery | Primary RT | 144 | 48.5 | 143 | 54 | 1 | 3.1 |
Adjuvant RT | 153 | 51.5 | 122 | 46 | 31 | 96.9 | |
Peritumoral edema | yes | 13§ | 6.6 | 12Ÿ | 6.7 | 1 | 5.56$ |
Multiple meningiomas | yes | 58 | 19.5 | 52 | 19.6 | 6 | 18.8 |
Fractionation Scheme | FSRT | 179 | 60.3 | 158 | 59.6 | 21 | 65.6 |
hFSRT | 92 | 31.0 | 82 | 30.9 | 10 | 31.3 | |
SRS | 26 | 8.8 | 25 | 9.4 | 1 | 3.1 | |
Mean total dose | 47.7 | 13.5/95.4 | 47.1 | 13.5/63 | 52.4 | 15/95.4 | |
Follow up-time in months | 35 | 1/132 | 38 | 1/132 | 12.5 | 2/80 | |