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

Astrid Maria Hoving*, Jason Voorneveld, Julia Olegivna Mikhal, Johan G. Bosch, E. Groot Jebbink, Cornelis Herman Slump

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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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
Number of pages16
JournalJournal of medical imaging
Volume8
Issue number1
DOIs
Publication statusPublished - 13 Jan 2021

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