Prediction of blood flow in tubes with diameters as small as 29 μ

Estimated contribution of hemoglobin and myoglobin to near infrared spectroscopy

“…Capillary volume and skeletal muscle [Mb] likely remain constant from rest to exercise. However, capillary hematocrit has been observed to be less than that of the systemic circulation at rest (Kindig and Poole, 2001, Russell et al, 2003, Kindig and Poole, 1998, Barbee and Cokelet, 1971, Klitzman and Duling, 1979 and increases towards systemic hematocrit with increased flow, such as seen with muscle contractions Poole, 2001 andDesjardins andDuling, 1990). Thus, these factors may have a drastic affect on the relative contributions of Mb and Hb to NIRS.…”

Two and Three Dimensional Blood Flow Simulations in Different Types of Blood Vessels

“…In the Fahraeus-Lindqvist effect, which was confirmed in vitro by a large number of investigators ( [2], [3], [18]) the dependence of blood viscosity on hematocrit in the different vessel diameters are of great importance in the development of a correct hydrodynamic models of blood flow through the microcirculation. It will reflect also the hematocritdependent transition from single to multiple arrangements of cells in flow.…”

“…In some of these approaches backed on the Fahraeus-Lindqvist effect, blood flow in arterioles is modeled by assuming a red blood cell-rich core surrounded by a marginal cellpoor layer [2], [16], whereas Barbee and Cokelet [3] deduced the changes in apparent viscosity from changes in hematocrit (a measure of the proportion of blood volume that is occupied by red blood cells).…”

Blood flow in microvascular networks: A study in nonlinear biology

“…7 The Fahraeus-Lindqvist effect has been quantitatively measured in several laboratories. [8][9][10] Efforts to correlate experimental data from various laboratories on the Fahraeus-Lindqvist effect have been published. 11,12 There is evidence that in vitro measurements underestimate the pressure drop which occurs in vivo.…”