Table 2:
Aneurysm characteristics
| Total No. of aneurysms treated | 500 |
| Size | |
| Small | 304 (60.8%) |
| Large | 176 (35.2%) |
| Giant | 20 (4%) |
| Location | |
| Anterior circulation | 445 (89%) |
| ICA | 240 (48%) |
| Extradural | 14 (2.8%) |
| Intradural | 226 (45.2%) |
| ACA (A1) | 5 (1%) |
| AcomA | 93 (18.6%) |
| Distal ACA | 9 (1.8%) |
| MCA (M1) | 11 (2.2%) |
| MCA bifurcation | 82 (16.4%) |
| Distal MCA | 5 (1%) |
| Posterior circulation | 55 (11%) |
| VA intradural | 7 (1.4%) |
| PICA | 7 (1.4%) |
| Vertebrobasilar junction | 3 (0.6%) |
| Basilar artery | 22 (4.4%) |
| SCA | 3 (0.6%) |
| PCA (P1) | 12 (2.4%) |
| Distal PCA | 1 (0.2%) |
| Previous treatment | |
| Balloon-assisted coiling | 27 |
| Primary coiling | 7 |
| Onyx embolization | 2 |
| Onyx + coil embolization | 1 |
Note:—ACA indicates anterior cerebral artery; AComA, anterior communicating artery; VA, vertebral artery; SCA, superior cerebellar artery; PCA, posterior cerebral artery.