Carotid artery stenosis: prospective comparison of CT, three-dimensional non-enhanced MR and digital subtraction angiography

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Abstract

The aim of this study was a comparison of diagnostic efficacy of non contrast enhanced MR-angiography (MRA) and CT-angiography (CTA) with digital subtraction angiography (DSA) in patients with atherosclerotic lesions of internal carotid arteries. We examined 70 patients with stenosis of carotid arteries. A stenosis degree of more than 50% (assessed by DSA) was considered as hemodynamically significant. Besides neurological survey the examination of extracranial arteries was performed, which included MRA, CTA and DSA. In each case we analysed a plane on which a degree of a stenosis was assessed as maximum. To characterize each modality we evaluated sensitivity, specificity and positive predictive value. A coincidence rate for CTA and DSA was 95%, for MRA and DSA – 89%. We can conclude that CTA and MRA can be use for an appropriate evaluation of stenosis of interna carotid arteries.

 
 

About the authors

I. S. Davydenko

Research Center of Neurology

Email: krotenkova_mrt@mail.ru
Russian Federation, Moscow

Marina V. Krotenkova

Research Center of Neurology

Author for correspondence.
Email: krotenkova_mrt@mail.ru
ORCID iD: 0000-0003-3820-4554

D. Sci. (Med.), Head, Department of radiation diagnostics, Institute of Clinical and Preventive Neurology

Russian Federation, Moscow

Rodion N. Konovalov

Research Center of Neurology

Email: krotenkova_mrt@mail.ru
ORCID iD: 0000-0001-5539-245X

Cand. Sci. (Med.), senior researcher, Neuroradiology department

Russian Federation, 125367 Moscow, Volokolamskoye shosse, 80

Michail A. Piradov

Research Center of Neurology

Email: krotenkova_mrt@mail.ru
ORCID iD: 0000-0002-6338-0392

D. Sci. (Med.), Professor, Academician of the Russian Academy of Sciences, Director

Russian Federation, 125367, Russia, Moscow, Volokolamskoye shosse, 80

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Copyright (c) 2008 Davydenko I.S., Krotenkova M.V., Konovalov R.N., Piradov M.A.

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