Table 1:

Comparison of demographic, angiographic, and treatment characteristics between complete occluded and incomplete occluded aneurysms^a

	All Aneurysms (n = 99)	Complete Occlusion (n = 64)	Incomplete Occlusion (n = 20)	P Value
Age (yr) (mean)	54.1 (SD, 11.2)	53.8 (SD, 10.8)	54.3 (SD, 10.4)	.76
Sex, M/F	31 (31.3%)/68 (68.7%)	18 (28.1%)/46 (71.9%)	9 (45%)/11 (55%)	.26
Follow-up (mo) (n = 84)	23.9 (SD, 16.3)	24.2 (SD, 15.0)	22.9 (SD, 20.2)	.27
Previous treatment	45 (45.5%)	28 (43.8%)	13 (65%)	.16
Aneurysm location				.62
MCA	44 (44.4%)	25 (39.1%)	12 (60%)
AcomA	27 (27.3%)	20 (31.3%)	5 (25%)
A1	2 (2.0%)	2 (3.1%)	0
A2	2 (2.0%)	2 (3.1%)	0
Pericallosal	24 (24.2%)	15 (23.4%)	3 (15%)
Aneurysm size (mm)
Neck	3.9 (SD, 2.1)	3.6 (SD, 2.1)	4.3 (SD, 2.0)	.06
Diameter	6.1 (SD, 5.0)	6.1 (SD, 5.7)	6.5 (SD, 3.5)	.14
Concomitant coiling	15 (15.2%)	9 (14.1%)	2 (10%)	1
Flow-diverter stent
Length (mm)	16.9 (SD, 3.9)	16.5 (SD, 3.8)	18.2 (SD, 4.3)	.42
Type				.004
Nitinol	47 (47.5%)	26 (40.6%)	16 (80%)
Cobalt chromium	52 (52.5%)	38 (59.4%)	4 (20%)
Angle of parent artery
Initial angle $\left(\mathrm{\alpha }\right)$	124.1° (SD, 64.0°)	118.3° (SD, 29.8°)	122.7° (SD, 28.1°)	.58
Postdeployment angle $\left(\mathrm{\beta }\right)$	141.6° (SD, 24.8°)	146.0° (SD, 21.8°)	135.9° (SD, 24°)	.12
Parent artery straightening $(\mathrm{\beta }–\mathrm{\alpha })$	3.8° (SD, 21.6°)	27.7  (SD, 22.6)	13.3° (SD, 12.3°)	<.001

Note:—AcomA indicates anterior communicating artery; A1, proximal segment of the anterior cerebral artery; A2, distal segment of the anterior cerebral artery.

^aData are presented as mean (standard deviation, SD) for continuous variables and absolute number (percentage of column total) for discrete variables.