In vivo measurements of “apparent viscosity” and microvessel hematocrit in the mesentery of the cat
HH Lipowsky, S Usami, S Chien - Microvascular research, 1980 - Elsevier
The arteriovenous (AV) distribution of microvessel hematocrit (H micro) was determined
throughout successive microvascular divisions in cat mesentery from in vivo measurements
of optical density. In vitro correlations of optical density and tube hematocrit in small-bore
glass tubes permitted the computation of in vivo values of H micro for luminal diameters
ranging from 20 to 70 μm. For smaller-size vessels, H micro was determined by
microocclusion and red cell counting. The results demonstrate a monotonic fall in the ratio of …
throughout successive microvascular divisions in cat mesentery from in vivo measurements
of optical density. In vitro correlations of optical density and tube hematocrit in small-bore
glass tubes permitted the computation of in vivo values of H micro for luminal diameters
ranging from 20 to 70 μm. For smaller-size vessels, H micro was determined by
microocclusion and red cell counting. The results demonstrate a monotonic fall in the ratio of …