Table 5.

Comparison of culprit stenotic segments according to occlusion types in each vascular bed in the fixed focal stenosis positive subgroup.

	Overall	TTO	BSO	P-value
Intracranial ICA occlusions	n = 19	n = 5	n = 14	0.026
Cavernous	1 (5.3%)	0 (0.0%)	1 (7.1%)
Ophthalmic	5 (26.3%)	4 (80.0%)	1 (7.1%)
Communicating	2 (10.5%)	0 (0.0%)	2 (14.3%)
M1 without ACA collaterals	4 (21.1%)	1 (20.0%)	3 (21.4%)
M1 with ACA collaterals	7 (36.8%)	0 (0.0%)	7 (50.0%)
MCA M1 occlusions	n = 62	n = 26	n = 36	0.012
Proximal M1	6 (9.7%)	5 (19.2%)	1 (2.8%)
Mid M1	23 (37.1%)	13 (50.0%)	10 (27.8%)
Distal M1	31 (50.0%)	8 (30.8%)	23 (63.9%)
M2	2 (3.2%)	0 (0.0%)	2 (5.6%)
Vertebrobasilar occlusions	n = 22	n = 21	n = 1	0.015
V4 portion	7 (31.8%)	7 (33.3%)	0 (0.0%)
Proximal basilar	6 (27.3%)	6 (28.6%)	0 (0.0%)
Mid basilar	7 (31.8%)	7 (33.3%)	0 (0.0%)
Distal basilar	2 (9.1%)	1 (4.8%)	1 (100.0%)

TTO, truncal-type occlusion; BSO, branching-site occlusion; ICA, internal carotid artery; ACA, anterior cerebral artery; MCA, middle cerebral artery.