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The Value of Carotid Doppler Ultrasound in Asymptomatic Extracranial Arterial Disease

Published online by Cambridge University Press:  18 September 2015

Natan M. Bornstein ,
Lorraine G. Chadwick  and
John W. Norris
Natan M. Bornstein
Affiliation:
Stroke Research Unit and Carotid Doppler Laboratory, Department of Neurosciences, Sunnybrook Medical Centre, University of Toronto, Toronto
Lorraine G. Chadwick
Affiliation:
Stroke Research Unit and Carotid Doppler Laboratory, Department of Neurosciences, Sunnybrook Medical Centre, University of Toronto, Toronto
John W. Norris*
Affiliation:
Stroke Research Unit and Carotid Doppler Laboratory, Department of Neurosciences, Sunnybrook Medical Centre, University of Toronto, Toronto
*
Stroke Research Unit, Sunnybrook Medical Centre, 2075 Bayview Avenue, Toronto, Ontario, Canada M4N 3M5
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Abstract:

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Carotid Doppler is an accurate, safe and repeatable method of assessing arterial calibre, for distinguishing harmless neck bruits and to identify the stroke prone individual. It is completely non-invasive and can be used serially to monitor progression in carotid stenosis. It is a valuable clinical tool in diagnosis and management in patients at risk of stroke, but has definite limitations, such as in differentiating carotid occlusion from severe stenosis. B-mode imaging, although valuable in identifying arterial anatomy, and detecting plaques, cannot accurately evaluate the degree of stenosis. It is of limited value in identifying plaque hemorrhage and ulceration. Doppler ultrasound technology has advanced rapidly in the last decade, especially in the combination of B-mode imaging and Doppler (Duplex), as well as in evaluating of the intracranial circulation (transcranial Doppler). In the next decade, it may become the new gold standard for evaluating the extracranial and intracranial circulation.

Type
Original Articles
Information
Canadian Journal of Neurological Sciences , Volume 15 , Issue 4 , November 1988 , pp. 378 - 383
Copyright
Copyright © Canadian Neurological Sciences Federation 1988

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