Document Detail


The limitations of diagnosis of carotid occlusion by Doppler ultrasound.
MedLine Citation:
PMID:  3278698     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Duplex scanning has been advocated as an acceptable alternative to angiography in the preoperative evaluation of carotid artery stenosis. To evaluate the accuracy of carotid Doppler in differentiating severe carotid stenosis from occlusion, we compared the results of angiography with duplex scanning in 124 carotid arteries (62 patients) and with continuous-wave Doppler in 662 carotid arteries (331 patients). The specificity was 95-99%, sensitivity was 86-96%, and accuracy was 95-98%. Duplex scanning wrongly identified occlusion in four arteries and failed to detect occlusion in one artery. In making decisions prior to carotid endarterectomy, even infrequent errors are unacceptable. We recommend angiography of all surgical candidates with apparent severe stenosis when the internal carotid artery cannot be clearly identified on duplex, or to distinguish apparent occlusion from undetectably low blood flow.
Authors:
N M Bornstein; Z G Beloev; J W Norris
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Annals of surgery     Volume:  207     ISSN:  0003-4932     ISO Abbreviation:  Ann. Surg.     Publication Date:  1988 Mar 
Date Detail:
Created Date:  1988-04-04     Completed Date:  1988-04-04     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  0372354     Medline TA:  Ann Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  315-7     Citation Subset:  AIM; IM    
Affiliation:
Department of Neurosciences, Sunnybrook Medical Centre, University of Toronto, Ontario, Canada.
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MeSH Terms
Descriptor/Qualifier:
Aged
Angiography
Arterial Occlusive Diseases / diagnosis*,  radiography
Carotid Artery Diseases / diagnosis*,  radiography
Carotid Artery, Internal
Constriction, Pathologic
Diagnosis, Differential
Evaluation Studies as Topic
Female
Humans
Male
Ultrasonography*
Comments/Corrections

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