Endovascular treatment strategy according to nidus location
| Treatment strategy | Location | |||||||
| Frontal | Cerebellar | Occipital | Parietal | Temporal | Pre-Rolandic | Rolandic | ||
| Single arterial | 5 | 3 | 4 | 1 | 4 | 0 | 0 | 17 (23.3%) |
| Single venous | 2 | 1 | 2 | 8 | 3 | 0 | 0 | 16 (21.9%) |
| Double arterial | 13 | 3 | 5 | 6 | 2 | 0 | 1 | 30 (41.1%) |
| Double venous | 6 | 0 | 0 | 1 | 1 | 2 | 0 | 10 (13.7%) |
| 26 (35.6%) | 7 (9.6%) | 11 (15.1%) | 16 (21.9%) | 10 (13.7%) | 2 (2.7%) | 1 (1.4%) | 73 | |
Χ2= 34.655, df 18, significance level p=0.0104, contingency coefficient 0.567.