Characteristics of Patients and Aneurysms
| Aneurysm Size (mm) | Aneurysm Number | Mean Age ± SD (yr) | % Female | Most Common Indication for MSCTA (%) | Most Common Location (%) |
|---|---|---|---|---|---|
| <4 | 36 | 50 ±12 | 60 | Subarachnoid hemorrhage (46) | MCA Bi/Tri (19) |
| PcoA (14) | |||||
| AcoA (14) | |||||
| 4–10 | 63 | 55 ±11 | 60 | Subarachnoid hemorrhage (58) | PcoA (22) |
| AcoA (13) | |||||
| MCA Bi/Tri (8) | |||||
| >10 | 22 | 53 ±14 | 45 | Subarachnoid hemorrhage (41) | MCA Bi/Tri (18) |
| ICA SC (18) | |||||
| PcoA (14) |
Note.—MSCTA indicates multi-section CT angiography; MCA Bi/Trif, bifurcation/trifurcation of middle cerebral artery; PcoA, posterior communicating artery; AcoA, anterior communicating artery; ICA SC, supraclinoid segment of internal carotid artery.