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Aneurysm location and aspect ratio breakdown.
| Anterior circulation (n = 70) | Mean neck | Mean width to neck ratio | Posterior circulation (n = 25) | |
|---|---|---|---|---|
| ACA | 33 (47%) | 4.5 | 1.33 | |
| ACM | 29 (41%) | 4.15 | 1.22 | |
| Carotid tip | 12 (12%) | 5.00 | 1.17 | |
| Basilar tip | 4.94 | 1.25 | 19 (76%) | |
| PCA/SCA | 4.6 | 1.14 | 4/1 (20%) | |
| PICA | 4.6 | 1.74 | 1 (4%) |
