Anatomic Variations in the Circle of Willis in Patients with Symptomatic Carotid Artery Stenosis Assessed with Multidetector Row CT Angiography

2006 ◽  
Vol 23 (4) ◽  
pp. 267-274 ◽  
Author(s):  
A. Waaijer ◽  
M.S. van Leeuwen ◽  
H.B. van der Worp ◽  
H.J.M. Verhagen ◽  
W.P.T.M. Mali ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Ct Angiography ◽  
Carotid Artery Stenosis ◽  
Circle Of Willis ◽  
Artery Stenosis ◽  
Anatomic Variations ◽  
Multidetector Row Ct ◽  
Symptomatic Carotid ◽  
Multidetector Row

scholarly journals Grading of carotid artery stenosis with multidetector-row CT angiography: visual estimation or caliper measurements?

2009 ◽  
Vol 19 (12) ◽  
pp. 2809-2818 ◽  
Author(s):  
Annet Waaijer ◽  
M. Weber ◽  
M. S. van Leeuwen ◽  
J. Kardux ◽  
W. B. Veldhuis ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Ct Angiography ◽  
Carotid Artery Stenosis ◽  
Artery Stenosis ◽  
Visual Estimation ◽  
Multidetector Row Ct ◽  
Multidetector Row

Carotid artery stenosis: Reproducibility of automated 3D CT angiography analysis method

2004 ◽  
Vol 28 (5) ◽  
pp. 387
Author(s):  
Z Zhang ◽  
MH Berg ◽  
AEJ Ikonen ◽  
R Vanninen ◽  
HI Manninen
Keyword(s):  
Carotid Artery ◽  
Ct Angiography ◽  
Carotid Artery Stenosis ◽  
Artery Stenosis ◽  
3D Ct ◽  
Analysis Method ◽  
3D Ct Angiography

scholarly journals Diagnostic dilemmas of multislice CT angiography in the evaluation of the degree of common carotid artery stenosis

2010 ◽  
Vol 138 (7-8) ◽  
pp. 494-497
Author(s):  
Dragoslav Nenezic ◽  
Slobodan Tanaskovic ◽  
Predrag Gajin ◽  
Nenad Ilijevski ◽  
Goran Vucurevic
Keyword(s):  
Carotid Artery ◽  
Ct Angiography ◽  
Common Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Soft Tissues ◽  
Multislice Ct ◽  
Diagnostic Procedures ◽  
Left Common Carotid Artery ◽  
Artery Stenosis ◽  
High Grade

Introduction. Multislice CT angiography (CTA) is a noninvasive and quick technique to image carotid artery stenosis, as well as intracerebral vasculature. Modern multidetector CTA produces images with a high resolution of, not only the contrast-filled lumen, but also of the vessel wall and the surrounding soft tissues. Multiple studies have verified the ability of CTA to provide an accurate representation of the degree of carotid stenosis in comparison to digital subtraction angiography, both for moderate and high-grade stenosis. Because of its fast and accurate vessel imaging, CT angiography is increasingly used in the assessment of carotid artery stenosis. Case Outline. A 37-year-old female patient was admitted at the Vascular Surgery Clinic of the Institute for Cardiovascular Diseases 'Dedinje', Belgrade, for angiography and endovascular procedure of a high-grade stenosis of the left common carotid artery based on Multislice CT findings brought by the patient. She complained of problems which we considered to be the result of cerebral circulation ischemia. After detailed diagnostic procedures, we concluded that no pathological lesions could be verified either on the left common carotid artery or other supraaortic branches. Therefore, the patient was discharged for further neurological examinations. Conclusion. Although Multislice CTA has many advantages over classical angiography, its validity should be taken with reserve, especially in younger patients.

Mycophenolate mofetil attenuates plaque inflammation in patients with symptomatic carotid artery stenosis

2010 ◽  
Vol 211 (1) ◽  
pp. 231-236 ◽  
Author(s):  
Sander I. van Leuven ◽  
Diederik F. van Wijk ◽  
Oscar L. Volger ◽  
Jean-Paul P.M. de Vries ◽  
Chris M. van der Loos ◽  
...  
Keyword(s):  
Mycophenolate Mofetil ◽  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Artery Stenosis ◽  
Symptomatic Carotid ◽  
Plaque Inflammation

Abstract 2509: Standardized Reports Are Needed To Describe Carotid Artery Stenosis

Stroke ◽  
2012 ◽  
Vol 43 (suppl_1) ◽  
Author(s):  
Eric Cheng ◽  
Salomeh Keyhani ◽  
Susan Ofner ◽  
Linda Williams ◽  
Dawn Bravata
Keyword(s):  
Decision Making ◽  
Clinical Trials ◽  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Diagnostic Tests ◽  
Artery Stenosis ◽  
Fiscal Year ◽  
Symptomatic Carotid ◽  
Imaging Results ◽  
Exact Degree

Background: Landmark clinical trials have shown that carotid procedures can greatly reduce the risk of stroke in persons with symptomatic carotid artery stenosis between 70 and 99% and can somewhat reduce the risk of stroke in persons with symptomatic carotid stenosis between 50 and 69%. Guidelines have recommended that results from carotid artery imaging tests be presented in these ranges to facilitate decision-making. We sought to determine how carotid imaging results were reported across Veterans Administration (VA) facilities. Methods: Carotid artery imaging results were obtained as part of a comprehensive chart review of veterans hospitalized with ischemic stroke at 127 VA hospitals in fiscal year 2007. Abstractors recorded the results of carotid ultrasound, MR angiography, CT angiography, or catheter angiography performed in the twelve months prior to admission to six months after admission. We excluded carotid artery imaging reports with results of “no stenosis”, “mild stenosis”, exact degree of stenosis <50%, or any range of stenosis <50% to focus on those reports that would likely inform decisions about carotid procedures. The unit of analysis was the carotid artery. We described how often the results were presented as an exact degree (such as 60%), as a range (such as 50 to 69%), or as a descriptive category (“moderate” or “severe” stenosis). For results described as a range, we examined how often it matched those used in landmark trials. Results: Of 6527 results of carotid artery imaging, there were 1315 results of greater than 50% or at least “moderate stenosis” (see Table ). Only 234 of the reports used a range to describe the stenosis; among this set, only 55 of the reports used a 50-69% or 70-99% range to describe the stenosis. Conclusions: In this national healthcare system, significant carotid artery stenosis was rarely reported in a way that exactly mapped onto recommendations from landmark clinical trials and guidelines. Clinicians who order these diagnostic tests as well as clinicians who interpret these diagnostic tests should collaborate to produce standardized reports that facilitate decision-making.

scholarly journals Periprocedural Thromboembolic Events Associated with Angioplasty and Stenting of the Extra- and Intracranial Carotid Artery Assessed by Neurological Status and Diffusion-Weighted Magnetic Resonance Imaging (DWI)

2012 ◽  
Vol 2012 ◽  
pp. 1-7
Author(s):  
Frank Ahlhelm ◽  
Johanna Lieb ◽  
Stefan Ulmer ◽  
Dirk Ahlhelm ◽  
Wolfgang Reith
Keyword(s):  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Vessel Diameter ◽  
Internal Carotid Artery Stenosis ◽  
Artery Stenosis ◽  
Thromboembolic Events ◽  
Intracranial Stenting ◽  
Symptomatic Carotid ◽  
Diffusion Weighted ◽  
Angioplasty And Stenting

Objective. The purpose of this study was to determine the frequency of thromboembolic events associated with angioplasty and stenting of the carotid artery with special regard to extra- or intracranial localization of stenosis. Methods. Twenty patients with symptomatic intracranial or extracranial internal carotid artery stenosis were treated with stenting and/or angioplasty. In 4 patients stenting was technically not feasible (all in the group with intracranial stenosis). All patients underwent diffusion-weighted imaging (DWI) and neurological examination within 48 hours before and after the procedure to detect periprocedural thrombembolic events. Results. Extracranial carotid angioplasty and stenting (eCAS) was technically feasible and successfull without procedure-related neurological complications in all cases. Intracranial stenting (iCAS) was not feasible in four cases including one patient with a fateful course. Concerning the restoration of the vessel diameter intracranial stenting was not as successful as eCAS, but more effective than balloon angioplasty alone. Incidence of thrombembolic events assessed by DWI was low. The detected periprocedural thrombembolic events were small and clinically silent. Conclusion. The risk of thromboembolic events during the endovascular treatment of symptomatic carotid artery stenosis was rather low for intra- and extracranial stenosis of the ICA in our patient sample, but one fatal course was observed.

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