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Title: In vitro blood flow behaviour in microchannels with simple and complex geometries
Author: Garcia, Valdemar
Dias, Ricardo P.
Lima, R.
Keywords: Blood flow
Confocal micro-PIV/PTV
Red blood cells
Red blood cells
Issue Date: 2012
Publisher: InTech
Citation: Garcia, Valdemar; Dias, Ricardo ; Lima, R. (2012) - In vitro blood flow behaviour in microchannels with simple and complex geometries. In Applied Biological Engineering - Principles and Practice. InTech. p. 393-416. ISBN 978-953-51-0412-4. p. 393-416.
Abstract: Over the years, various experimental methods have been applied in an effort to understand the blood flow behaviour in microcirculation. The development of optical experimental techniques has contributed to obtain possible explanations on the way the blood flows through microvessels. In recent years, due to advances in computers, optics, and digital image processing techniques, it has become possible to combine a conventional particle image velocimetry (PIV) system with an inverted microscope and consequently improve both spatial and temporal resolution. The present review outlines our most relevant studies on the flow properties of blood at a microscale level by using current micro-PIV and confocal micro-PIV techniques. In this chapter, our recent studies about in vitro blood flow behaviour in microchannels both in straight and with complex geometries are presented. In straight microchannels we present some phenomena such as Fahraeus effect and Fahraeus-Lindqvist effect, the flow of particles and red blood cells (RBCs) in diluted suspensions, the flow of RBCs in concentrated suspensions, the cell-free layer and sedimentations effects. The most recent studies in blood flow through complex geometries such as bifurcations, confluences and stenosis are also reviewed. By using a chromatographic method, the flow of RBC s through a network of microcapillaries is presented.
Peer review: yes
ISBN: 978-953-51-0412-4
Publisher Version:
Appears in Collections:DMA - Capítulos de Livros

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