Baseline demographics and aneurysm characteristics
| n=30 Patients/30 Aneurysms | |
| Age (years) | |
| Mean±SD (N) | 59.4±11.8 (30) |
| Median (Q1–Q3) | 58.5 (53.0–68.0) |
| Min–Max | 31.0–79.0 |
| Height (cm) | |
| Mean±SD (N) | 164.5±9.7 (30) |
| Median (Q1–Q3) | 161.1 (157.5–167.6) |
| Min–Max | 152.4–195.6 |
| Weight (kg) | |
| Mean±SD (N) | 77.6±19.6 (30) |
| Median (Q1–Q3) | 73.5 (65.4–90.9) |
| Min–Max | 45.6–142.0 |
| Body mass index | |
| Mean±SD (N) | 28.5±5.4 (30) |
| Median (Q1–Q3) | 26.7 (25.3–31.7) |
| Min–Max | 19.6–38.4 |
| Gender, female | 80.0% (24/30) |
| Race, white | 83.3% (25/30) |
| Comorbidities | |
| Coronary artery disease | 16.7% (5/30) |
| Chronic obstructive pulmonary disorder | 23.3% (7/30) |
| Hyperlipidemia/hypercholesterolemia | 56.7% (17/30) |
| Hypertension | 73.3% (22/30) |
| Diabetes mellitus | 30.0% (9/30) |
| Current smoker | 30.0% (9/30) |
| Past smoker | 43.3% (13/30) |
| Previous transient ischemic attack | 13.3% (4/30) |
| Previous ischemic stroke | 13.3% (4/30) |
| Previous hemorrhagic stroke | 10.0% (3/30) |
| Previously ruptured target aneurysm | 6.7% (2/30) |
| History of multiple aneurysms | 16.7% (5/30) |
| Other significant medical history* | 80.0% (24/30) |
| Anterior circulation aneurysm location | 80.0% (24/30) |
| Aneurysm size (mm)† | |
| Mean±SD (N) | 5.3±1.7 (30) |
| Median (Q1–Q3) | 5.3 (4.0–6.7) |
| Min–Max | 2.5–9.0 |
| Aneurysm neck width (mm) | |
| Mean±SD (N) | 3.9±1.1 (30) |
| Median (Q1–Q3) | 4.0 (3.2–4.4) |
| Min–Max | 1.6–7.0 |
| Dome:neck ratio‡ | |
| Mean±SD (N) | 1.1±0.2 (28) |
| Median (Q1–Q3) | 1.1 (1.1–1.3) |
| Min–Max | 0.6–1.5 |
| Parent vessel diameter proximal and distal to the aneurysm neck (mm) | |
| Mean±SD (N) | 2.9±0.6 (30), 2.6±0.6 (30) |
| Median (Q1–Q3) | 2.9 (2.3–3.3), 2.4 (2.1–3.0)) |
| Min–Max | 2.0–4.4, 2.0–4.5 |
| Exact aneurysm location | |
| Anterior communicating artery | 43.3% (13/30) |
| Middle cerebral artery bifurcation | 10% (3/30) |
| ICA–ophthalmic artery | 6.7% (2/30) |
| ICA–posterior communicating artery | 3.3% (1/30) |
| ICA bifurcation/terminus | 3.3% (1/30) |
| Supraclinoid carotid artery | 10% (3/30) |
| Superior hypophyseal | 3.3% (1/30) |
| Basilar apex | 10% (3/30) |
| Basilar trunk | 3.3% (1/30) |
| Superior cerebellar artery | 3.3% (1/30) |
| Vertebrobasilar junction | 3.3% (1/30) |
*Other significant medical history included 114 reports of other findings in 24 patients. The most frequently reported findings were headaches/migraines (n=14), dizziness (n=7), neck/back pain (n=5), seizures (n=4), and gastroesophageal reflux disease (n=4). All other significant medical history findings were reported to occur in three or fewer patients.
†Aneurysm size calculated as a maximum of three dimensions (anteroposterior plane, lateral plane, height).
‡Dome size calculated as a minimum of two widths (anteroposterior plane, lateral plane).
ICA, internal carotid artery.