In vitro performance of echoPIV for assessment of laminar flow profiles in a carotid artery stent.
J Med Imaging (Bellingham)
; 8(1): 017001, 2021 Jan.
Article
en En
| MEDLINE
| ID: mdl-33457445
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.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
J Med Imaging (Bellingham)
Año:
2021
Tipo del documento:
Article
País de afiliación:
Países Bajos