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More info
You can access this
clinical trial
if you have
Carotid Stenosis
and you are
over 18
years old
-
This is an observational trial.
You are contributing to medical knowledge about your condition.
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The purpose

Atherosclerosis is a chronic, systemic and progressive disease affecting different arterial blood vessels in the body. Atherosclerotic lesions silently progress from small plaques to severe stenosis and may remain asymptomatic for years. Unstable plaques and stenosis (also called vulnerable plaques), however, are prone to rupture leading to myocardial infarction, or stroke. The proliferation of the small arteries that are distributed to the outer and middle coats of the larger blood vessels (vasa vasorum) and within the atherosclerotic plaques (neovascularization) are inherently linked with the atherosclerotic plaque development, plaque inflammation and vulnerability. By injecting ultrasound contrast agents (microbubbles) into the blood stream, it is possible to detect this microcirculation of the vessel wall and the neovascularization within the atherosclerotic plaque using a contrast-enhanced ultrasound (CEUS) imaging technique. Particularly, CEUS of the carotid artery has been introduced as a non-invasive technique to improve detection of carotid atherosclerosis and to evaluate the presence of carotid plaque neovascularization which has emerged as a new marker for plaque vulnerability. The project investigates the predictive value of the detection of carotid plaque neovascularization on CEUS imaging in patients with asymptomatic carotid artery stenosis regarding the progression of the carotid atherosclerotic lesion and future vascular events including myocardial infarction, stroke or vascular intervention. The investigators hypothesize that neovascularization within the carotid lesion will significantly be more pronounced in patients with progressive carotid lesions and in patients suffering future vascular events during. The project will support the concept that intraplaque neovascularization is associated with plaque instability and vulnerability and therefore, the use of CEUS may provide an additional non-invasive, simple, safe, and reliable imaging modality to risk stratify individuals. The identification of vulnerable that are at increased risk of rupture by identification of intraplaque neovascularization is expected to improve the prediction of future vascular events and thus allow for better treatment selection. It will help the clinician to further risk stratify carotid stenosis. Particularly, it will help to identify unstable carotid stenosis that may already benefit from invasive therapy as carotid thromboendarterectomy and stenting.
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Locations near you

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Tris trial is registered with FDA with number: NCT01732523. The sponsor of the trial is University Hospital, Basel, Switzerland and it is looking for 240 volunteers for the current phase.
Official trial title:
Predictive Value of Carotid Lesion Neovascularization Detected by Contrast-enhanced Ultrasound (CEUS) in Patients With Asymptomatic Carotid Stenosis