• Luca Saba, Tobias Saam, H Rolf Jäger, Chun Yuan, Thomas S Hatsukami, David Saloner, Bruce A Wasserman, Leo H Bonati, and Max Wintermark.
• Department of Medical Sciences, University of Cagliari, Cagliari, Italy. Electronic address: lucasaba@tiscali.it.
• Lancet Neurol. 2019 Jun 1; 18 (6): 559-572.

AbstractStroke represents a massive public health problem. Carotid atherosclerosis plays a fundamental part in the occurence of ischaemic stroke. European and US guidelines for prevention of stroke in patients with carotid plaques are based on quantification of the percentage reduction in luminal diameter due to the atherosclerotic process to select the best therapeutic approach. However, better strategies for prevention of stroke are needed because some subtypes of carotid plaques (eg, vulnerable plaques) can predict the occurrence of stroke independent of the degree of stenosis. Advances in imaging techniques have enabled routine characterisation and detection of the features of carotid plaque vulnerability. Intraplaque haemorrhage is accepted by neurologists and radiologists as one of the features of vulnerable plaques, but other characteristics-eg, plaque volume, neovascularisation, and inflammation-are promising as biomarkers of carotid plaque vulnerability. These biomarkers could change current management strategies based merely on the degree of stenosis.Copyright © 2019 Elsevier Ltd. All rights reserved.

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