Table 2

- Peak systolic velocity, EDV, stenosis level, and plaque characteristics.

	e-CEA/p-CEA
	e-CEA		p-CEA
	Median	IQR^*	Median	IQR^*
PSV (before surgery)	247	198-273	283	215-342
PSV (7 days)	68	64-85	73	62-84
PSV (30 days)	71	61-79	75	67-81
Friedman’s test	45.763		46.308
P	<0.001		<0.001
EDV (before surgery)	119	98-129	124	112-141
EDV (7 days)	28	24-34	33	27-37
EDV (30 days)	30	27-33	31	27-37
Friedman’s test	34.504		45.731
P	<0.001		<0.001
Stenosis level left ICA (before surgery)	58	35-72	73	40-90
Stenosis% level left ICA (7 days)	0	0-30	0	0-25
Stenosis% level left ICA (30 days)	0	0-30	0	0-25
Friedman’s test	32.111		36.00
P	<0.001		<0.001
Stenosis level right ICA (before surgery)	60	45-75	65	45-85
Stenosis% level right ICA (7 days)	0	0-50	20	0-50
Stenosis% level right ICA (30 days)	0	0-45	20	0-50
Friedman’s test	29.673		24.00
P	<0.001		<0.001
Plaque length (mm) (before surgery)	17	14-24	19	15-27
Plaque length (mm) (7 days)	0	0-0	0	0-0
Plaque length (mm) (30 days)	0	0-0	0	0-0
Friedman’s test	60.00		60.00
P	<0.001		<0.001
Plaque thickness (mm) (before surgery)	4.6	3.9-4.9	4.5	3.7-5.8
Plaque thickness (mm) (7 days)	0.0	0-0	0.0	0-0
Plaque thickness (mm) (30 days)	0.0	0-0	0.0	0-0
Friedman’s test	60.00		60.00
P	<0.001		<0.001

e-CEA: eversion carotid endarterectomy, p-CEA: carotid endarterectomy with patch angioplasty,

PSV: peak systolic velocity, EDV: end diastolic velocity, ICA: internal carotid artery, mm: millimeter