INFLUENCE OF VESSEL DIAMETER ON RED-CELL DISTRIBUTION AT MICROVASCULAR BIFURCATIONS

被引：25

作者：

CARR, RT

WICKHAM, LL

机构：

[1] Department of Chemical Engineering, University of New Hampshire, Durham

来源：

MICROVASCULAR RESEARCH | 1991年 / 41卷 / 02期

关键词：

D O I：

10.1016/0026-2862(91)90020-C

中图分类号：

R6 [外科学];

学科分类号：

1002 ; 100210 ;

摘要：

The uneven distribution of red blood cells (RBCs) to daughter branches at microvascular bifurcations, often referred to as "plasma skimming," has been characterized in previous studies by comparisons of flux-flow plots of red cell flow fraction (F*) versus volumetric flow fraction (Q*) at single junctions. Comparisons of flux-flow plots for single bifurcations with differing daughter/parent vessel diameter ratios ( Dd Dp = 1.0 vs 0.5) have been made to reveal the influence of vessel size on red cell distribution at vessel junctions of four different geometries (100 × 100, 50 × 50, 100 × 50, 50 × 25 μm). Experimental data determined by effluent collection were compared to those from video fluorescence microscopy experiments, as well as to numerical computations from theoretical models. Statistical comparisons using a likelihood ratio test indicate that vessel diameter ratio, Dd Dp has no detectable influence on RBC distribution in these microvascular bifurcations. © 1991.

引用

页码：184 / 196

页数：13

共 30 条

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