In vitro flow investigations in the aortic arch during cardiopulmonary bypass with stereo-PIV. Issue 10 (16th July 2015)

• Record Type: Journal Article
• Authors: Büsen, Martin; Kaufmann, Tim A.S.; Neidlin, Michael; Steinseifer, Ulrich; Sonntag, Simon J.
• Is Part Of: Journal of biomechanics. Volume 48:Issue 10(2015)
• Page Start: 2005
• Page End: 2011
• Publication Date: 2015-07-16
• Subjects: Animal mechanics -- Periodicals; Biomechanics -- Periodicals; Biomechanics -- Periodicals; Mécanique animale -- Périodiques; Biomécanique -- Périodiques; Electronic journals; 571.4305
• DOI: 10.1016/j.jbiomech.2015.03.030
• Languages: English
• ISSNs: 0021-9290

Abstract

<abstract abstract-type="author" id="ab0005"> <title id="sect0005">Abstract</title> <sec> <p id="sp0055">The cardiopulmonary bypass is related to complications like stroke or hypoxia. The cannula jet is suspected to be one reason for these complications, due to the sandblast effect on the vessel wall. Several <italic>in silico</italic> and <italic>in vitro</italic> studies investigated the underlying mechanisms, but the applied experimental flow measurement techniques were not able to address the highly three-dimensional flow character with a satisfying resolution. In this work <italic>in vitro</italic> flow measurements in a cannulated and a non-cannulated aortic silicone model are presented. Stereo particle image velocimetry measurements in multiple planes were carried out. By assembling the data of the different measurement planes, quasi 3D velocity fields with a resolution of~1.5×1.5×2.5 mm³ were obtained. The resulting velocity fields have been compared regarding magnitude, streamlines and vorticity. The presented method shows to be a suitable <italic>in vitro</italic> technique to measure and address the three-dimensional aortic CPB cannula flow with a high temporal and spatial resolution.</p> </sec> </abstract>