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

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. <50% stenosis Spectral broadening (minimal vs. complete) CAROTID DUPLEX CRITERIA

Finally, multiple factors beyond Duplex ultrasound scan (DUS) criteria for grading >50% carotid artery stenosis is typically divided into broad categories such as 50-79% stenosis, 80-99% stenosis, and occlusion. The purpose of this study is to validate DUS criteria for stratifying 50 to 100% carotid stenosis into 10% intervals using digital substraction cerebral angiography (DSCA) as the standard of comparison. 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.

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J Neuroimaging 2002; 12:124-130. Crossref, Medline, Google Scholar; 9 Thomas N, Taylor P, Padayachee S. The impact of theoretical errors on velocity estimation and accuracy of duplex grading of carotid stenosis. AbuRahma and associates concluded that different carotid duplex velocity criteria should be used to detect restenosis after CEA when a patch closure has been performed. 26.

additional criteria include ICA/CCA PSV ratio of 2.0-4.0 and ICA EDV of 40-100 cm/sec.

Optimal carotid duplex velocity criteria for defining the severity of carotid in-stent restenosis. AbuRahma AF(1), Abu-Halimah S, Bensenhaver J, Dean LS, Keiffer T, Emmett M, Flaherty S. Author information: (1)Department of Surgery, Robert C Byrd Health Sciences Center, West Virginia University, Charleston, WV 25304, USA. ali.aburahma@camc.org

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 Carotid duplex velocity criteria revisited for the diagnosis of carotid in-stent restenosis.

2010-09-07 · Systolic velocity > 1.25 m/s is consistent with an angiographic stenosis > 50% diameter reduction (DR). Both the PSV = 2.69 m/s and the EAV = 1.78 m/s exceed the criterion.

Doppler MV CW Used to assess MR. Measure peak velocity of regurg jet (  Just look at what the American Society of Echocardiography (ASE) guidelines on Pulse Wave Doppler allows you to measure the velocity of blood flow (at a  19 Jan 2018 Time-averaged velocity of a sperm head along the straight line between its first detected position and its last. 3. VAP, average path velocity (µm/s). Although Doppler velocity criteria have been successfully used to classify the severity of stenosis in both native and stented carotid arteries, the relationship to   av H Alzahar · 2020 — velocity compared with ratio of systolic flow velocity and end diastolic flow velocity. Ultrasound of carotid arteries is a duplex ultrasonography that has the ability to occlusion on duplex criteria od ipsilateral stenoses: comparative study of. Spectral Doppler velocity waveforms were obtained from common carotid (CCA), ICA and It is crucial that duplex criteria are standardised with a fixed angle of  MATERIAL AND METHODS: Duplex scans of 4,548 internal carotid arteries Criteria I=ICA peak systolic velocity (PSV) > 130 cm/sec and ICA end-diastolic  av G Ostling · 2007 · Citerat av 60 — criteria of having an atherosclerotic plaque in the right carotid artery. These subjects blood flow velocity according to criteria used in local clinical practice.20 The size Accuracy of duplex sonography before carotid endarterectomy–a com-.

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. There has been an ongoing debate regarding which duplex ultrasound (DUS) criteria to use to determine the rate of in-stent restenosis. This prospective study revisits DUS criteria for determining the rate of in-stent restenosis. In analyzing a subset of 12 patients (pilot study) who had both completion carotid angiography and DUS within 30 days, 10 patients with normal post-stenting carotid angiography (< 30% residual stenosis) had peak systolic velocities (PSVs) of the stented internal The optimal DUS velocity criteria for in-stent restenosis of >or=30%, >or=50%, and >or=80% were the PSVs of 154, 224, and 325 cm/s, respectively. Optimal carotid duplex velocity criteria for defining the severity of carotid in-stent restenosis When we initially applied our Intersocietal Commission for the Accreditation of Vascular Laboratories-accredited vascular laboratory duplex velocity cutoff PSV of ≥ 140 cm/s criterion, which was When the old DUS velocity criteria for nonstented carotid arteries were applied, 54% of patients had ≥ 30% restenosis (PSV of > 120 cm/s), but when our new proposed DUS velocity criteria for Optimal carotid duplex velocity criteria for defining the severity of carotid in-stent restenosis Presented at the Society for Clinical Vascular Surgery Annual Meeting, Las Vegas, Nev, Mar 5-8, 2008. Author links open overlay panel Ali F. AbuRahma MD a Shadi Abu-Halimah MD a Jessica Bensenhaver MD a L. Scott Dean PhD, MBA b Tammi Keiffer RN b additional criteria include ICA/CCA PSV ratio <2.0 and ICA EDV <40 cm/sec. 50-69% ICA stenosis.
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2008, 48: 589-94. 10.1016/j.jvs.2008.04.004. Article PubMed Google Scholar Stanziale et al.

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 Spectral Doppler image confirms marked velocity elevation: PSV = 581 cm/s, end diastolic velocity (EDV) = 181 cm/s, and the PSV ratio is 8.2.
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criteria for the duplex sonographic diagnosis of carotid artery stenosis have of significant disease. We chose peak systolic velocity in the internal carotid artery.

Typical Doppler spectrum of the internal carotid artery and the external carotid artery. A. The Doppler spectrum of the internal carotid artery shows a low resistance pattern with sufficient diastolic antegrade 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 Duplex ultrasound scan (DUS) criteria for grading >50% carotid artery stenosis is typically divided into broad categories such as 50-79% stenosis, 80-99% stenosis, and occlusion.