Wall shear stress can improve prediction accuracy for transient ischemic attack

Table 2 Comparison of ultrasound characteristics and wall shear stress data between the two groups

		TIA Group (n = 30)	Control Group (n = 204)	t/X2 Value	P-value
Plaque location	Common carotid artery	8	51	0.046	0.977
	Carotid sinus	18	124
	Internal carotid artery	4	29
Plaque property	Hard plaque	9	104	6.062	0.048
	Soft plaque	14	54
	Mixed plaque	7	46
Lumen stenosis rate (%)		58.26 ± 13.28	44.29 ± 21.82	3.411	0.001
PSV (cm/s)		90.34 ± 9.23	87.12 ± 9.42	1.753	0.081
EDV (cm/s)		17.24 ± 5.12	15.93 ± 3.82	1.673	0.096
Proximal end WSS (dyne/cm2)		9.15 ± 2.27	7.29 ± 3.86	6.720	0.000
Distal end WSS (dyne/cm2)		7.42 ± 1.95	6.39 ± 1.74	2.980	0.003

PSV: Peak systolic velocity; EDV: End diastolic velocity; WSS: Wall shear stress.