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Ann Indian Acad Neurol. 2017 Oct-Dec;20(4):378-386. doi: 10.4103/aian.AIAN_122_17.

Atherosclerotic Carotid Plaques: Multimodality Imaging with Contrast-enhanced Ultrasound, Computed Tomography, and Magnetic Resonance Imaging.

Annals of Indian Academy of Neurology

Divyata R Hingwala, Kesavadas Chandrasekhakan, Bejoy Thomas, P N Sylaja, M Unnikrishnan, T R Kapilamoorthy

Affiliations

  1. Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India.
  2. Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India.
  3. Department of Cardiovascular and Thoracic Surgery, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India.

PMID: 29184341 PMCID: PMC5682742 DOI: 10.4103/aian.AIAN_122_17

Abstract

INTRODUCTION: The imaging of carotid plaques has undergone a paradigm shift increasing importance being given to plaque characterization. Patients with "vulnerable" plaques are more prone to develop future neurovascular events.

PURPOSE: The purpose of this study is to analyze the role of multimodality imaging techniques in the assessment of carotid atherosclerotic plaques.

MATERIALS AND METHODS: Twenty-six patients were prospectively enrolled in the study. Patients underwent multidetector computed tomography (CT) angiography, ultrasound, contrast-enhanced ultrasound, and high-resolution magnetic resonance imaging (MRI) of the carotid arteries with special emphasis on the carotid bifurcation.

RESULTS: The mean age of patients was 65.41 years. Twenty-one were males. Plaque neovascularization was seen in 10 of the 18 plaques studied (55.56%). Based on the predominant components of the plaque, plaques were characterized as lipid (3), lipid with recent hemorrhage (1), fibrous (7), fibrofatty (4), fibrofatty with some hemorrhagic components (3), and recent hemorrhage (2).

CONCLUSIONS: Together, contrast-enhanced ultrasound, CT, and MRI provide complete information about the plaque characteristics.

Keywords: Computed tomography; contrast-enhanced ultrasound; magnetic resonance imaging; neovascularization; vulnerable carotid plaque

Conflict of interest statement

There are no conflicts of interest.

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