Table 2.

Preoperative sonographic findings in patients with and without preexisting venous intimal hyperplasia

Parameter	Vein Intima>22.3 μm	Vein Intima≤22.3 μm	P Value
Forearm AVF
N of points	15	29
Arterial diameter, mm	2.8±0.4	2.6±0.5	0.19
Venous diameter, mm	3.2±0.6	3.1±0.7	0.68
Upper arm AVF
N of points	49	36
Arterial diameter, mm	4.7±1.0	4.4±1.0	0.28
Venous diameter, mm	4.2±1.3	4.2±1.1	0.93

AVF, arteriovenous fistula.