Baseline aneurysm data
| Characteristics | Value | Percentage |
| Aneurysm size | n=417 | |
| Dome width | 6.99±5.28 mm (1.0–32.0 mm) | |
| Neck width | 4.47±2.28 mm (1.0–15.0 mm) | |
| Very small (<4 mm) | 131 | 31.4 |
| Small (≥4 – <7 mm) | 136 | 32.6 |
| Medium (≥7 – <10 mm) | 64 | 15.3 |
| Large (≥10 – <25 mm) | 81 | 19.4 |
| Giant (≥25 mm) | 5 | 1.2 |
| Aneurysm Location | n=420 | |
| ICA, cavernous | 49 | 11.7 |
| ICA, paraophthalmic | 249 | 59.3 |
| PComA | 71 | 16.9 |
| AChoA | 18 | 4.3 |
| ICA, terminus | 2 | 0.5 |
| ICA, petrous | 2 | 0.5 |
| ACA, A1 segment | 6 | 1.4 |
| MCA, M1 segment | 14 | 3.3 |
| MCA, M2 segment | 2 | 0.5 |
| ACA, distal. | 1 | 0.2 |
| Anterior communicating artery | 5 | 1.2 |
| ICA/MCA | 1 | 0.2 |
| Aneurysm morphology | n=420 | |
| Blister-like | 16 | 3.8 |
| Dissecting | 4 | 1.0 |
| Fusiform | 5 | 1.2 |
| Saccular | 391 | 93.1 |
| Segmental disease | 4 | 1.0 |
| Rupture status | n=420 | |
| Unruptured | 392 | 93.3 |
| Previously ruptured | 21 | 5 |
| Acutely ruptured (<21 days) | 7 | 1.7 |
| Previously treated | n=420 | |
| No | 365 | 86.9 |
| Yes | 55 | 13.1 |
| Previous treatment | n=55 | |
| Previously coiled and flow diverted* | 1 | 1.8 |
| Previously clipped | 2 | 3.6 |
| Previously coiled | 52 | 94.5 |
| Clinical status of aneurysm | n=420 | |
| Symptomatic | ||
| No | 325 | 77.4 |
| Yes | 95 | 22.6 |
| Incidental† | ||
| No | 141 | 33.6 |
| Yes | 279 | 66.4 |
*Previously flow diverted with p64 flow modulatiion device.
†Aneurysms that were not ruptured, not symptomatic, and not previously treated.
ACA, anterior cerebral artery; AChoA, anterior choroidal artery; ICA, internal carotid artery; MCA, middle cerebral artery; PComA, posterior communicating artery.