Regional blood flow measurements with 15 micron and 50 micron microspheres in pregnant guinea-pigs.
Two sizes of microsphere were used to determine regional blood flow in pregnant guinea-pigs. Tissue perfusion measured with 50 micron microspheres was significantly greater than that measured with 15 micron microspheres in the small intestine, uterus, vagina, and placenta. A significantly larger proportion of the smaller microspheres passed through the systemic vasculature and could be detected in the lungs.
D000818:Animals; D001775:Blood Circulation; D002560:Cerebrovascular Circulation; D005260:Female; D006168:Guinea Pigs; D006801:Humans; D007668:Kidney / Q000098:blood supply; D008431:Maternal-Fetal Exchange; D008643:Mesentery / Q000098:blood supply; D008863:Microspheres; D010991:Plethysmography / Q000295:instrumentation*; D011247:Pregnancy; D011652:Pulmonary Circulation; D012039:Regional Blood Flow; D014599:Uterus / Q000098:blood supply