Table 1 Characteristics of the 52 analyzed patients
Factor | Value |
|---|---|
Total number of patients | 52 |
Age at diagnosis (years) | 56.2 +/− 14.1 |
Sex | |
Female | 42 (80.8%) |
Male | 10 (19.2%) |
Post menopause women | 26 (50%) |
BMI (kg/m2) | |
< 18,5 | 3 (5.8%) |
18,5–24,9 | 38 (73%) |
> 25 | 6 (11.5%) |
> 30 | 5 (9.7%) |
Symptomatic disease manifestation | 51 (98.1%) |
Localization of skull base meningiomas: | |
Anterior | 21/52 (40.4%) |
Medial | 31/52 (59.6%) |
Surgical resection before radiotherapy: | 18 (34.6%) |
Gross total resection | 3 (16.7%) |
Subtotal resection | 14 (77.8%) |
Biopsy | 1 (5.5%) |
WHO tumor grade | |
I | 17 (32.7%) |
II | 1 (1.9%) |
Size of meningioma (mm) | 27.8 +/− 13.9 |
Radiation therapy characteristics | |
IMRT | 52 (100%) |
Energy | |
10X | 10 (19.2%) |
6X | 42 (80.8%) |
Overall treatment time (days) | 42.3 +/− 5.3 |
Number of fractions | 28.5 +/− 1.8 |
Total dose (Gy) | 54.1 +/− 1.6 |
Dose to HP axis (Gy) | 47 +/− 9.4 |