. Author manuscript; available in PMC: 2010 Mar 1.

Published in final edited form as: J Vasc Surg. 2009 Mar;49(3):602–606. doi: 10.1016/j.jvs.2008.10.016

Table III.

Stent design duplex ultrasound results obtained immediately after CAS to detect moderate to severe (50% or greater) stenosis using validated criteria for nonstented carotid arteries^*^†

	Stent Design
Duplex Ultrasound	Closed-cell (%)	Open-cell (%)	Total
Positive for 50% or greater stenosis	17 (42)	24 (24)	41
Negative for 50% or greater stenosis	24 (58)	76 (76)	100
Total	41 (100)	100 (100)	141

Ultrasound criteria for nonstented carotid arteries defined 50% or greater carotid stenosis according to modfied University of Washington criteria (peak systolic velocity [PSV] greater than 125 cm/s and internal carotid artery-to-common carotid artery [ICA/CCA] PSV ratio greater than 2.0.).

^†

Completion angiogram revealed successful revascularization in each case and none had >30% residual stenosis.