Table 2.

Baseline aneurysms characteristics.

Aneurysm characteristics	PP population		ITT population (n = 163)
	Yes (n = 124)	No (n = 39)
Side – n (%)
Left	45 (36.3)	20 (51.3)	65 (39.9)
Medial	14 (11.3)	7 (17.9)	21 (12.9)
Right	64 (51.6)	12 (30.8)	76 (46.6)
Unknown	1 (0.8)	0	1 (0.6)
Location – n (%)
Anterior cerebral	8 (6.5)	1 (2.6)	9 (5.5)
Anterior communicating	37 (29.8)	13 (33.3)	50 (30.7)
Basilar artery	7 (5.6)	5 (12.8)	12 (7.4)
Termination carotid	12 (9.7)	1 (2.6)	13 (8)
Cerebellar	2 (1.6)	1 (2.6)	3 (1.8)
Middle cerebral artery bifurcation	24 (19.4)	7 (17.9)	31 (19)
Middle cerebral artery pre-bifurcation	2 (1.6)	1 (2.6)	3 (1.8)
Ophthalmic portion internal carotid artery	5 (4)	5 (12.8)	10 (6.1)
Posterior cerebral artery	2 (1.6)	0	2 (1.2)
Posterior communicating	18 (14.5)	3 (7.7)	21 (12.9)
Supraclinoid internal carotid artery	5 (4)	2 (5.1)	7 (4.3)
Vertebral artery	2 (1.6)	0	2 (1.2)
Circulation – n (%)
Anterior circulation	111 (89.5)	33 (84.6)	144 (88.8)
Posterior circulation	13 (10.5)	6 (15.4)	19 (11.7)
Sac height (mm)
n	118	38	156
Mean (±SD)	5.8 (3.5)	6.8 (4.6)	6 (3.7)
Min-max	2–16	2–22	2–22
Sac width (mm)
n	90	23	113
Mean (±SD)	5.8 (3.5)	6.8 (4.6)	6 (3.7)
Min-max	2–19	2.1–18	2–19
Neck (mm)
n	110	34	144
Mean (±SD)	3.4 (2.6)	3.4 (1.5)	3.4 (2.4)
Min-max	1.3–24	1.7–9.3	1.3–24
Dome-to-neck ratio
n	110	34	144
Mean (±SD)	2.1 (0.9)	2.1 (0.8)	2.1 (0.9)
Min-max	0.5–6	0.8–4.2	0.5–6
Wide neck (≥4 mm)	61 (55.5)	17 (50)	78 (54.2)
Aneurysm status – n (%)
Unruptured	77 (62.2)	21 (56.8)	98 (60.9)
Ruptured (≤30 days)	47 (37.9)	16 (43.2)	63 (39.1)

ITT: intention to treat; PP: per-protocol; SD: standard deviation.