Patient and aneurysm characteristics at baselinea
| Wall Enhancement (n = 19) | No Wall Enhancement (n = 46) | ||
|---|---|---|---|
| Unstable during FU (n = 4) | Stable during FU (n = 15) | ||
| Median age (IQR) (yr) | 50 (47–53) | 60 (55–68) | 55 (52–61) |
| Female sex | 4 (100) | 11 (73) | 37 (80) |
| Hypertension | 2 (50) | 9 (60) | 21 (46) |
| Smoking status | |||
| Current smoker | 2 (50) | 3 (20) | 14 (30) |
| Previous smoker | 1 (25) | 10 (67) | 25 (54) |
| Never smoked | 1 (25) | 2 (13) | 7 (15) |
| Previous SAH | – | 3 (20) | 11 (24) |
| Family history of intracranial aneurysms | 1 (25) | – | 10 (22) |
| Aneurysm location | |||
| ICA (excluding PcomA) | – | 1 (7) | 16 (35) |
| PcomA | – | 1 (7) | 3 (7) |
| ACA/AcomA/pericallosal artery | – | 1 (7) | 9 (20) |
| MCA | 4 (100) | 11 (73) | 12 (26) |
| Basilar artery | – | 1 (7) | 2 (4) |
| Other posterior circulation | – | – | 4 (9) |
| Aneurysm size (mm) | |||
| 1.0–2.9 | – | 1 (7) | 16 (35) |
| 3.0–4.9 | – | 3 (20) | 16 (35) |
| 5.0–6.9 | 3 (75) | 6 (40) | 11 (24) |
| ≥7.0 | 1 (25) | 5 (33) | 3 (7) |
| Irregular shape | – | 6 (40) | 9 (20) |
| Median follow-up duration (IQR) (mo) | 15 (12–28) | 27 (19–31) | 27 (24–32) |
Note:—PcomA indicates posterior communicating artery; AcomA, anterior communicating artery; ACA, anterior cerebral artery; FU, follow-up; IQR, interquartile range; MCA, middle cerebral artery; SAH, subarachnoid hemorrhage; –, no patients.
↵a Data are aneurysm-based instead of patient-based and are presented as number (%) unless stated otherwise.