Table 1

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)
Height (cm)
 Mean±SD (N)164.5±9.7 (30)
 Median (Q1–Q3)161.1 (157.5–167.6)
Weight (kg)
 Mean±SD (N)77.6±19.6 (30)
 Median (Q1–Q3)73.5 (65.4–90.9)
Body mass index
 Mean±SD (N)28.5±5.4 (30)
 Median (Q1–Q3)26.7 (25.3–31.7)
Gender, female80.0% (24/30)
Race, white83.3% (25/30)
 Coronary artery disease16.7% (5/30)
 Chronic obstructive pulmonary disorder 23.3% (7/30)
 Hyperlipidemia/hypercholesterolemia 56.7% (17/30)
 Hypertension73.3% (22/30)
 Diabetes mellitus30.0% (9/30)
 Current smoker30.0% (9/30)
 Past smoker43.3% (13/30)
 Previous transient ischemic attack13.3% (4/30)
 Previous ischemic stroke13.3% (4/30)
 Previous hemorrhagic stroke10.0% (3/30)
 Previously ruptured target aneurysm6.7% (2/30)
 History of multiple aneurysms16.7% (5/30)
 Other significant medical history*80.0% (24/30)
Anterior circulation aneurysm location80.0% (24/30)
Aneurysm size (mm)†
 Mean±SD (N)5.3±1.7 (30)
 Median (Q1–Q3)5.3 (4.0–6.7)
Aneurysm neck width (mm)
 Mean±SD (N)3.9±1.1 (30)
 Median (Q1–Q3)4.0 (3.2–4.4)
Dome:neck ratio‡
 Mean±SD (N)1.1±0.2 (28)
 Median (Q1–Q3)1.1 (1.1–1.3)
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–Max2.0–4.4, 2.0–4.5
Exact aneurysm location
 Anterior communicating artery43.3% (13/30)
 Middle cerebral artery bifurcation10% (3/30)
 ICA–ophthalmic artery6.7% (2/30)
 ICA–posterior communicating artery3.3% (1/30)
 ICA bifurcation/terminus3.3% (1/30)
 Supraclinoid carotid artery10% (3/30)
 Superior hypophyseal3.3% (1/30)
 Basilar apex10% (3/30)
 Basilar trunk3.3% (1/30)
 Superior cerebellar artery3.3% (1/30)
 Vertebrobasilar junction3.3% (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.