| Comparison of oculoplethysmography/carotid phonoangiography with duplex scan/spectral analysis in the detection of carotid artery stenosis. | |
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MedLine Citation:
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PMID: 7064179 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The accuracy of the duplex scan with spectral analysis (DS/SA) in predicting the presence of arteriographic carotid stenosis was compared to that of oculoplethysmography/carotid phonoangiography (OPG/CPA) in 234 vessels from 117 patients who had had both non-invasive studies in addition to independently interpreted arteriograms. The DS/SA with 212/234 (91%) overall correct responses was superior to the OPG/CPA which properly classified 181/234 (77%) of the vessels (p less than .01). Of major clinical impact was the superiority of the DS/SA (p less than .001) in identifying the 72 vessels with 50-99% stenosis. The OPG/CPA had a discouraging 39/72 (54%) false-negative rate in this group whereas the DS/SA missed only 9/72 (12%) of these arteries. Of those 39 incorrect responses for the OPG/CPA, 26/39 (67%) were in patients with a 50% or greater stenosis on the contralateral side. This is a recognized area of weakness for that test. Based on the results of this study, we have abandoned the use of the OPG/CPA in the evaluation of patients with suspected carotid stenosis and rely solely on the duplex scan with spectral analysis. |
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Authors:
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B A Keagy; W F Pharr; D Thomas; D E Bowes |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Stroke; a journal of cerebral circulation Volume: 13 ISSN: 0039-2499 ISO Abbreviation: Stroke Publication Date: 1982 Jan-Feb |
Date Detail:
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Created Date: 1982-05-27 Completed Date: 1982-05-27 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0235266 Medline TA: Stroke Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 43-5 Citation Subset: IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Carotid Artery Diseases
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diagnosis* Constriction, Pathologic / diagnosis Evaluation Studies as Topic Humans Plethysmography / methods* Sound* Spectrum Analysis / methods Ultrasonography* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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