en
Scientific article
English

Grading carotid stenosis using ultrasonic methods

Published inStroke, vol. 43, no. 3, p. 916-921
Publication date2012
Abstract

The controversy as to whether Doppler ultrasonic methods should play a role in clinical decision-making in the prevention of stroke is attributable to reported disagreement between angiographic and ultrasonic results and the lack of internationally accepted ultrasound criteria for describing the degree of stenosis. Foremost among the explanations for both is the broad scatter of peak systolic velocities in the stenosis, the criterion that has so far received most attention. Grading based on a set of main and additional criteria can overcome diagnostic errors. Morphological measurements (B-mode images and color flow imaging) are the main criteria for low and moderate degrees of stenosis. Increased velocities in the stenosis indicate narrowing, but the appearance of collateral flow and decreased poststenotic flow velocity prove a high degree stenosis (≥70%), additionally allowing the estimation of the hemodynamic effect in the category of high-degree stenosis. Additional criteria refer to the effect of a stenosis on prestenotic flow (common carotid artery), the extent of poststenotic flow disturbances, and derived velocity criteria (diastolic peak velocity and the carotid ratio). This multiparametric approach is intended to increase the reliability and the standard of reporting of ultrasonic results for arteriosclerotic disease of the carotid artery.

Keywords
  • Carotid Stenosis/diagnosis/physiopathology/ultrasonography
  • Echocardiography/methods
  • Echocardiography, Doppler
  • Echocardiography, Doppler, Color
  • Hemodynamics/physiology
  • Humans
  • Reproducibility of Results
Citation (ISO format)
VON REUTERN, Gerhard-Michael et al. Grading carotid stenosis using ultrasonic methods. In: Stroke, 2012, vol. 43, n° 3, p. 916–921. doi: 10.1161/STROKEAHA.111.636084
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
ISSN of the journal0039-2499
403views
0downloads

Technical informations

Creation11/09/2016 11:05:00 AM
First validation11/09/2016 11:05:00 AM
Update time03/15/2023 1:10:14 AM
Status update03/15/2023 1:10:14 AM
Last indexation05/02/2024 6:02:14 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack