Table 3.

Correlation between anatomical or non-anatomical factors and ischemic lesions associated with carotid artery stenting.

	All cases (n = 50)	Ischemic lesions		P value
		Yes (n = 24)	No (n = 26)
Non-anatomical factors:
Age ≥ 80 years	7 (14.0)	5 (20.8)	2 (7.7)	0.239
Degree of stenosis, %	80.0 ± 10.4	81.2 ± 11.1	78.8 ± 9.86	0.527
Symptomatic lesion	22 (44.0)	14 (58.3)	8 (30.8)	0.050*
Contralateral lesion	10 (20.0)	6 (25.0)	4 (15.4)	0.490
Vulnerable plaque	28 (56.0)	13 (54.2)	15 (57.7)	0.802
Heavily calcified plaque	7 (14.0)	4 (16.7)	3 (11.5)	0.697
Filter type EPD	23 (46.0)	11 (45.8)	12 (46.2)	0.982
Proximal protection	13 (26.0)	4 (16.7)	9 (34.6)	0.148
Precise stent	19 (38.0)	12 (50.0)	7 (26.9)	0.093
Carotid sinus reflex	21 (42.0)	13 (54.2)	8 (30.8)	0.094
Filter occlusion	1 (2.0)	1 (4.2)	0 (0)	0.480
Anatomical factors:
Left side	30 (60.0)	16 (66.7)	14 (53.8)	0.355
Pseudo occlusion	7 (14.0)	5 (20.8)	2 (7.7)	0.239
ECA occlusion	3 (6.0)	2 (8.3)	1 (3.8)	0.602
CCA stenosis	7 (14.0)	3 (12.5)	4 (15.4)	1.000
CCA tortuosity	3 (6.0)	3 (12.5)	0 (0)	0.103
ICA tortuosity	8 (16.0)	7 (29.2)	1 (3.8)	0.021
Unfavorable arch anatomy	6 (12.0)	3 (12.5)	3 (11.5)	1.000
Data are presented as the n (%) or means ± SD. EPD: embolic protection device, ECA: external carotid artery, CCA: common carotid artery, ICA: internal carotid artery. * The P value was actually < 0.05.