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Related Experiment Video

Updated: May 12, 2026

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis

Published on: August 12, 2025

Morphological changes in carotid arteries in stroke cases.

Guna Bahadur Thapa¹, Alin Sundas, Raj Kumar Rauniyar

¹Department of Radiology, Shree Birendra Hospital, Chhauni, Kathmandu, Nepal.

JNMA; Journal of the Nepal Medical Association

|April 18, 2013

Summary

Ultrasonography effectively identifies atherosclerotic plaques in the extra cranial carotid arteries, common in ischemic stroke patients. This imaging technique aids in characterizing plaque morphology and location for better patient management.

Keywords:

carotid artery, carotid ultrasonography, ischemic infarction, plaque.

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Transient Middle Cerebral Artery Occlusion Model of Stroke

Transient Middle Cerebral Artery Occlusion Model of Stroke

Published on: August 11, 2023

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Last Updated: May 12, 2026

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis

Published on: August 12, 2025

Transient Middle Cerebral Artery Occlusion Model of Stroke

Transient Middle Cerebral Artery Occlusion Model of Stroke

Published on: August 11, 2023

Area of Science:

Vascular Neurology
Radiology
Cardiovascular Imaging

Background:

Ischemic stroke predominantly affects the carotid artery territory.
Extracranial carotid arteries are frequent sites of atherosclerotic plaque formation.
Ultrasonography is a primary screening tool for carotid artery disease.

Purpose of the Study:

To investigate morphological changes in the extracranial carotid arteries of patients with ischemic infarction using ultrasonography.
To characterize atherosclerotic plaque in the carotid arteries.

Main Methods:

Prospective institutional study with convenience sampling.
Inclusion of patients with Computed Tomography-proven ischemic, lacunar, and transient ischemic infarctions.
Utilized ultrasonography to examine the extracranial carotid arteries.

Main Results:

Fifty-four cases were analyzed.
Mean Intima-Media Thickness was 0.89 mm (right) and 0.88 mm (left).
65% of cases showed plaque, predominantly in the carotid bulb region (93%).
Ipsilateral plaque prevalence was 76% (right) and 65% (left).
53% of plaques were soft, with most causing <50% lumen narrowing.
Internal carotid artery plaque found in 24% of cases.

Conclusions:

Carotid ultrasound is valuable for screening high-risk asymptomatic individuals.
Ultrasound aids in monitoring symptomatic cases for management planning.
Morphological assessment of carotid plaques is feasible with ultrasound.