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Single calibration multiplane stereo-PIV: the effect of mitral valve orientation on three-dimensional flow in a left ventricle model

Saaid, Hicham and Segers, Patrick and Novara, Matteo and Claessens, Tom and Verdonk, Pascal (2018) Single calibration multiplane stereo-PIV: the effect of mitral valve orientation on three-dimensional flow in a left ventricle model. Experiments in Fluids, 59 (3), pp. 1-13. Springer. DOI: 10.1007/s00348-018-2504-5 ISSN 0723-4864

Full text not available from this repository.

Official URL: https://doi.org/10.1007/s00348-018-2504-5

Abstract

The characterization of flow patterns in the left ventricle may help the development and interpretation of flow-based parameters of cardiac function and (patho-)physiology. Yet, in vivo visualization of highly dynamic three-dimensional flow patterns in an opaque and moving chamber is a challenging task. This has been shown in several recent multidisciplinary studies where in vivo imaging methods are often complemented by in silico solutions, or by in vitro methods. Because of its distinctive features, particle image velocimetry (PIV) has been extensively used to investigate flow dynamics in the cardiovascular field. However, full volumetric PIV data in a dynamically changing geometry such as the left ventricle remain extremely scarce, which justifies the present study. An investigation of the left ventricle flow making use of a customized cardiovascular simulator is presented; a multiplane scanning-stereoscopic PIV setup is used, which allows for the measurement of independent planes across the measurement volume. Due to the accuracy in traversing the illumination and imaging systems, the present setup allows to reconstruct the flow in a 3D volume performing only one single calibration. The effects of the orientation of a prosthetic mitral valve in anatomical and anti-anatomical configurations have been investigated during the diastolic filling time. The measurement is performed in a phase-locked manner; the mean velocity components are presented together with the vorticity and turbulent kinetic energy maps. The reconstructed 3D flow structures downstream the bileaflet mitral valve are shown, which provides additional insight of the highly three-dimensional flow.

Item URL in elib:https://elib.dlr.de/124138/
Document Type:Article
Additional Information:Article:49
Title:Single calibration multiplane stereo-PIV: the effect of mitral valve orientation on three-dimensional flow in a left ventricle model
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Saaid, HichamHicham.Saaid (at) UGent.beUNSPECIFIED
Segers, PatrickUNSPECIFIEDUNSPECIFIED
Novara, Matteomatteo.novara (at) dlr.deUNSPECIFIED
Claessens, TomUNSPECIFIEDUNSPECIFIED
Verdonk, PascalUNSPECIFIEDUNSPECIFIED
Date:2018
Journal or Publication Title:Experiments in Fluids
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:59
DOI :10.1007/s00348-018-2504-5
Page Range:pp. 1-13
Publisher:Springer
Series Name:Springer-Verlag
ISSN:0723-4864
Status:Published
Keywords:Stereo-PIV, mitral valve, left ventricle, single calibration
Institution:Deutsches Zentrum für Luft- und Raumfahrt e.V.
Department:AS-EXV
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Deposited By: Micknaus, Ilka
Deposited On:05 Dec 2018 12:05
Last Modified:06 Sep 2019 15:25

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