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NCT05451485

VFI in Healthy Vessels

Completed Last updated 6 May 2023
What this trial tests

trial testing Blood speckle tracking in Carotid Artery Stenosis in 20 participants. Completed in 18 March 2023.

Timeline
5 November 2022
Primary endpoint
18 March 2023
18 March 2023

Quick facts

Lead sponsorRijnstate Hospital
StatusCompleted
Study typeOBSERVATIONAL
Enrollment20
Start date5 November 2022
Primary completion18 March 2023
Estimated completion18 March 2023
Sites1 location across Netherlands

Drugs / interventions tested

Conditions studied

Sponsor

Rijnstate Hospital

Who can join

Adults 20 to 75, any sex, with Carotid Artery Stenosis or Superficial Femoral Artery Stenosis. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

There is a wealth of evidence implicating the important role of blood flow throughout all stages of the process of atherogenesis. Two locations along the vascular tree at which atherosclerotic plaques are typically found are the carotid artery (CA) and the superficial femoral artery (SFA). Nowadays, ultrasound is the technique of choice for assessing the vascular condition in the CA and SFA. However, clinically used ultrasound techniques show a large variability in estimating the blood flow velocity, due to multiple limitations. With the advent of ultrafast ultrasound imaging, (almost) all elements of the transducer can be activated simultaneously. These so-called plane wave acquisition acquires thousands of images per second and makes continuous tracking of blood flow velocities in all directions in the field of view possible. This high-frame-rate acquisition opened up new possibilities for blood flow imaging at the CA and SFA, such as blood Speckle Tracking (bST) and ultrasound Particle Image Velocimetry (echoPIV). Both these vector flow imaging (VFI) techniques enable the quantification of 2D blood flow velocity profiles, where bST uses no contrast agents compared to echoPIV. Beside these novel ultrasound based techniques, 4D Phase Contrast Magnetic Resonance Imaging (4D flow MRI) enables a non-invasive quantification of the 4D blood flow velocity profiles (3D + time) and can be used as reference standard for blood flow assessments in-vivo. We therefore aim to evaluate the performance of both VFI techniques in comparison to 4D flow MRI measurements in the CA and SFA of healthy volunteers.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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Other recruiting trials for Carotid Artery Stenosis

Currently open trials in the same condition.

Other Rijnstate Hospital trials

Trials by the same sponsor.

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Data sources for this page

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