In vitro performance of echoPIV for assessment of laminar flow profiles in a carotid artery stent

AM Hoving, Jason Voorneveld, J Mikhal, Hans Bosch, EG Jebbink, CH Slump

Research output: Contribution to journalArticleAcademic

2 Citations (Scopus)

Abstract

Purpose: Detailed blood flow studies may contribute to improvements in carotid artery stenting. High-frame-rate contrast-enhanced ultrasound followed by particle image velocimetry (PIV), also called echoPIV, is a technique to study blood flow patterns in detail. The performance of echoPIV in presence of a stent has not yet been studied extensively. We compared the performance of echoPIV in stented and nonstented regions in an in vitro flow setup. Approach: A carotid artery stent was deployed in a vessel-mimicking phantom. High-frame-rate contrast-enhanced ultrasound images were acquired with various settings. Signal intensities of the contrast agent, velocity values, and flow profiles were calculated. Results: The results showed decreased signal intensities and correlation coefficients inside the stent, however, PIV analysis in the stent still resulted in plausible flow vectors. Conclusions: Velocity values and laminar flow profiles can be measured in vitro in stented arteries using echoPIV.

Original languageEnglish
Article number017001
JournalJournal of Medical Imaging
Volume8
Issue number1
DOIs
Publication statusPublished - 2021

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