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The role of the hematocrit on the radial dispersion of red blood cells in glass capillaries
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Orientador(es)
Resumo(s)
The flow properties of blood in the microcirculation
depend strongly on the hematocrit (Hct),
microvessel geometry, and cell properties. Previous
in vitro studies have measured the radial
displacement of red blood cells (RBCs) at
concentrated suspensions using conventional
microscopes. However, they have used transparent
suspensions of ghost red cells, which may have
different physical properties than normal RBCs. In this study, we
have used a new approach (confocal micro-PTV) to
obtain direct and quantitative detailed descriptions
of the flow behaviour of RBCs in concentrated
suspensions of normal RBCs. The experiments
were performed in 100 mm glass capillaries at
Reynolds numbers (Re) of 0.005 and Hcts from 3 to
35%. Emphasis was devoted to the radial dispersion
of RBCs located in the middle plane.
Descrição
Palavras-chave
Microcirculation RBC dispersion Labeled cells Microchannels Micro-PTV
Contexto Educativo
Citação
Lima, R.; Ishikawa, T.; Imai, Y.; Takeda, M.; Wada, S.; Yamaguchi, T. (2008). The role of the hematocrit on the radial dispersion of red blood cells in glass capillaries. In 16th Congress of the European Society of Biomechanics. Lucerne, Switzerland.