Duplex measurements of peak systolic velocity and end diastolic velocity were record- ed, and the ratio of these velocities in the internal and common carotid arteries was calculated. The criteria determined for detection of 50% or greater stenosis were as follows: peak systolic

A Carotid Doppler ultrasound scan serves to image the arteries in the patient's neck to assess whether they are at risk for stenosis of these vessels or a stroke.

Methods Consecutive patients undergoing angiography and carotid duplex assessments were compared (n = 140). ICA, common carotid artery (CCA), and ECA peak systolic velocities (PSVs) were recorded. ECA/CCA PSV ratio was calculated. Faught WE, Mattos MA, et al.

Carotid duplex velocity criteria

We previously reported the optimal DUS velocities for >or=30% in-stent restenosis. Key Words: carotid stenosis degree of stenosis duplex sonography peak systolic velocity transcranial sonography ultrasound diagnosis See editorial, p 627. S ince the early days of Doppler sonography, a continuous discussion has been taking place about the reliability of Doppler sonography and latterly duplex sonography to deter- 2002-07-16 These changes persist during long-term follow-up and across all grades of in-stent restenosis after CAS. The proposed new velocity criteria accurately define residual stenosis >or =20%, in-stent restenosis >or =50%, and high-grade in-stent restenosis > or =80% in the stented carotid artery. Though also imperfect, we recommend requiring criteria in addition to ≥230 cm/s peak-systolic velocity such as end-diastolic velocity ≥100 cm/s or internal carotid artery-to-common carotid artery ratio ≥4.0 or computed tomography or magnetic resonance angiogram showing ≥70% stenosis. The currently used carotid DUS velocity criteria overestimated the incidence of in-stent restenosis. We propose new velocity criteria for the ICA PSV of > 155 cm/s to define ≥ 30% in-stent restenosis.

Duplex Ultrasound Velocity Criteria in Carotid Artery Stenting Patients. Incidence of in-stent restenosis after carotid artery stenting (CAS). ( a) Kaplan-Meier cumulative event rates for clinically significant ISR ≥ 80% after CAS. ( b) Kaplan-Meier cumulative event rates for ISR ≥ 60% after CAS.

J Vasc Surg. 2008, 48: 589-94. 10.1016/j.jvs.2008.04.004. Article PubMed Google Scholar Stanziale et al.

PSV: peak systolic velocities; EDV: end diastolic velocities. Table 1. Duplex ultrasound criteria for internal carotid artery stenosis. Carotid duplex ultrasonography

doi: 10.1177/1531003509337030.

460-463.
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ﬁrst study to analyze duplex velocity criteria of the internal carotid artery just distal to carotid patching. PATIENTS AND METHODS This study includes 200 CEAs (done between August 20, 2003 and November 2, 2005) that were randomized into 100 with polytetraﬂuoroethylene ACUSEAL (W. L. Gore, Flagstaff, Ariz) patches and 100 with Hemashield Sabeti S, Schillinger M, Mlekusch W, et al. Quantification of internal carotid artery stenosis with duplex US: comparative analysis of different flow velocity criteria. Radiology 2004; 232:431.

Typical Doppler spectrum of the internal carotid artery and the external carotid artery.
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The management of atherosclerotic carotid occlusive disease for stroke prevention has entered a time of dramatic change. Improvements in medical management have begun to challenge traditional interventional approaches to asymptomatic carotid stenosis. Simultaneously, carotid artery stenting (CAS) has emerged as an alternative to carotid endarterectomy (CE). Finally, multiple factors beyond

The current method of choice for non-invasive screening of the carotid artery is duplex ultrasonography.1 Although several criteria are available for diagnosing carotid stenosis, there is no consenus on the ideal criteria. This is due to the operator-dependent The currently used carotid DUS velocity criteria overestimated the incidence of in-stent restenosis. We propose new velocity criteria for the ICA PSV of > 155 cm/s to define ≥ 30% in-stent University of Washington Criteria Phases I and II I II Blackshear 1979 Fell 1981 Breslau 1982 Langlois 1983 Normal Normal 1-10% 1-15% 10-49% 16-49% 50-99% 50-99% Occluded Occluded Primary criterion: ≥50% ICA stenosis PSV ≥125 cm/s Secondary criterion: Normal vs.

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Sabeti S, Schillinger M, Mlekusch W, et al. Quantification of internal carotid artery stenosis with duplex US: comparative analysis of different flow velocity criteria. Radiology 2004; 232:431. Moneta GL, Edwards JM, Chitwood RW, et al. Correlation of North American Symptomatic Carotid Endarterectomy Trial (NASCET) angiographic definition of 70% to 99% internal carotid artery stenosis with

Duplex ultrasound velocity criteria for the diagnosis and grading of stenosis severity The test allows stratification of the degree of carotid artery stenosis on the basis of grayscale and Doppler velocity results into the following strata: normal (no stenosis), <50% stenosis, 50% to 69% stenosis, 70% to 79% stenosis, 80% to 99% stenosis, near-occlusion (string sign), and total occlusion. [27] Optimal carotid duplex velocity criteria for deﬁning the severity of carotid in-stent restenosis Ali F. AbuRahma, MD, aShadi Abu-Halimah, MD, Jessica Bensenhaver, MD,a L. Scott Dean, PhD, MBA, bTammi Keiffer, RN, Mary Emmett, PhD, and Sarah Flaherty, BS,b Charleston, WV Duplex ultrasound velocity criteria for the diagnosis and grading of stenosis severity. The test allows stratification of the degree of carotid artery stenosis on the basis of greyscale and Doppler velocity results into the following strata: normal (no stenosis), <50% stenosis, 50% to 69% stenosis, 70% to 79% stenosis, 80% to 99% stenosis, near-occlusion (string sign), and total occlusion. [PSV = peak systolic velocity; EDV = end-diastolic velocity; ICA = internal carotid artery; CCA = common carotid artery] normal. ICA PSV is <125 cm/sec and no plaque or intimal thickening is visible sonographically; additional criteria include ICA/CCA PSV ratio <2.0 and ICA EDV <40 cm/sec <50% ICA stenosis 2020-12-01 · Standardization of carotid duplex criteria should result in more consistent reporting and 1.