Table 1

Baseline patient and aneurysm demographic information

PC400Controlp Value
Patients75282
Aneurysms76301
Age (years)55.955.60.702
SexWomen: 79.0% (60)
Men: 21.0% (16)
Women: 75.9% (230)
Men: 24.1% (73)
0.651
SAH44.7% (34)57.1% (173)0.054
Aneurysm locationCavernous: 0.0% (0)Cavernous: 4.7% (14)0.083
Ophthalmic: 15.8% (12)Ophthalmic: 8.3% (25)0.081
Superior hypophyseal: 6.6% (5)Superior hypophyseal: 5.0% (15)0.571
Posterior communicating: 32.9% (25)Posterior communicating: 19.9% (60)0.021*
Anterior choroidal: 0.0% (0)Anterior choroidal: 1.7% (5)0.588
ICA bifurcation: 4.0% (3)ICA bifurcation: 3.7% (11)1.000
ICA other: 10.5% (8)ICA other: 11.6% (35)1.000
Anterior communicating: 9.2% (7)Anterior communicating: 22.6% (68)0.009**
Pericallosal: 0.0% (0)Pericallosal: 2.7% (8)0.367
ACA other: 0.0% (0)ACA other: 1.0% (3)
MCA: 11.8% (9)MCA: 10.6% (32)0.837
Vertebral: 1.3% (1)Vertebral: 1.3% (4)1.000
PICA: 1.3% (1)PICA: 0.7% (2)0.493
VBJ: 0.0% (0)VBJ: 0.3% (1)1.000
Basilar trunk: 0.0% (0)Basilar trunk: 0.7% (2)1.000
AICA: 0.0% (0)AICA: 0.0% (0)
SCA: 0.0% (0)SCA: 1.3% (4)0.587
Basilar tip: 6.6% (5)Basilar tip: 3.3% (10)0.197
PCA: 0.0% (0)PCA: 0.7% (2)1.000
Aneurysm sizeSmall: 75.0% (57)Small: 80.1% (244)0.264
Large: 25.0% (19)Large : 18.9% (57)
Aneurysm dome volume (mm3)Average: 207.21Average: 224.590.004**
Median: 110.8Median: 80.9
Range: 15.49–1407.39Range: 3.49–2723.68
Aneurysm diameter (mm)Average: 6.5Average: 6.00.007**
Range: 3.1–14Range: 1.88–17.33
Aneurysm neck (mm)Average: 4.13Average: 3.940.174
Range: 1.20–9.14Range: 1.1–12
  • *p<0.05, **p<0.01.

  • ACA, anterior cerebral artery; AICA, anterior inferior cerebellar artery; ICA, internal carotid artery; MCA, middle cerebral artery; PCA, posterior cerebral artery; PC400, Penumbra coil; PICA, posterior inferior cerebellar artery; SCA, superior cerebellar artery; VBJ, vertebrobasilar junction.