Table 4.

Comparison of different vascular imaging features

	mRS			Recurrence
	Favourable	Unfavourable	P value	Yes	No	P value
Plaques	311 (63.7)	53 (58.2)	0.320	28 (60.9)	336 (63.0)	0.770
Stenosis	240 (49.2)	55 (60.4)	0.049	29 (63.0)	266 (49.9)	0.087
Distribution of stenosis
Intracranial/extracranial			0.185			0.310
Normal	248 (50.8)	36 (39.6)		17 (37.0)	267 (50.1)
Intracranial	180 (36.9)	40 (44.0)		22 (47.8)	198 (37.1)
Extracranial	35 (7.2)	7 (7.7)		3 (6.5)	39 (7.3)
Both	25 (5.1)	8 (8.8)		4 (8.7)	29 (5.4)
Anterior/posterior			0.264			0.398
Normal	248 (50.8)	36 (39.6)		17 (37.0)	267 (50.1)
Anterior	153 (31.4)	36 (39.6)		19 (41.3)	170 (31.9)
Posterior	70 (14.3)	15 (16.5)		8 (17.4)	77 (14.4)
Both	17 (3.5)	4 (4.4)		2 (4.3)	19 (3.6)
Degree of stenosis			0.002			0.107
Normal or mild	262 (53.7)	38 (41.8)		17 (37.0)	283 (53.1)
Moderate	34 (7.0)	1 (1.1)		4 (8.7)	31 (5.8)
Severe or occlusion	192 (39.3)	52 (57.1)		25 (54.3)	219 (41.1)

mRS, modified Rankin Scale.