What question did this study set out to answer?

This research aims to evaluate the diagnostic performance of wall shear stress and arterial stiffness indices derived from vector flow imaging and echo-tracking methodologies.

April 19, 2026Open Access

Diagnostic performance of vector flow imaging–derived wall shear stress and radiofrequency echo-tracking–derived arterial stiffness indices in severe carotid stenosis

NYNezih Yaylı AKAtiye Cenay Karabörk KılıçGazi Hastanesi BBBurcu Küçük Biçer

Key Points

This research aims to evaluate the diagnostic performance of wall shear stress and arterial stiffness indices derived from vector flow imaging and echo-tracking methodologies.
Utilized vector flow imaging to measure wall shear stress.

Structured PICO

Do vector flow imaging-derived hemodynamic parameters and radiofrequency echo-tracking-derived arterial stiffness indices accurately detect severe (≥70%) carotid artery stenosis?

Population

90 adult patients (mean age 70.4, 55.6% male) with suspected or known carotid artery disease and the presence of an atherosclerotic plaque at the carotid bifurcation, referred for carotid Doppler ultrasound.

Intervention

Vector flow imaging (VFI)-derived hemodynamic parameters (WSSmax, WSSmean, TUR, TAT) and radiofrequency echo-tracking-derived arterial stiffness indices (RF-ASI: PWV, HC)

Outcome

Diagnostic performance (Area Under the Curve) for detecting severe (≥70%) internal carotid artery stenosissurrogate

Vector flow imaging-derived mean wall shear stress at the plaque peak provides high diagnostic accuracy for detecting severe carotid stenosis and may complement conventional ultrasound grading.

Abstract

Ultrasonography (renamed from the Journal of Korean Society of Ultrasound in Medicine in January 2014), the official English-language journal of the Korean Society of Ultrasound in Medicine (KSUM), is an international peer-reviewed academic journal dedicated to practice, research, technology, and education dealing with medical ultrasound, Aims and Scope:Ultrasonography (renamed from the Journal of Korean Society of Ultrasound in Medicine in January 2014), the official English-language journal of the Korean Society of Ultrasound in Medicine (KSUM), is an international peer-reviewed academic journal dedicated to practice, research, technology, and education dealing with medical ultrasound.It is published four times per year: January 1, April 1, July 1, and October 1. Original articles, topical reviews, pictorial essays, and notable case reports are published in Ultrasonography covering state-of-the-art content. Ultrasonography also serves as a medium for cooperation among physicians and specialists from around the world who are focusing on various ultrasound technology and disease problems.

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