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See perfusion lung scan.
perfusion scanPerfusion scintigraphy Cardiology A radionuclide technique for assessing myocardial or pulmonary blood flow, measured by IV injection of 99mTc microaggregated albumin, or thallium, TC-MIBI. See Myocardial infarction. Cf Ventilation scan.
1. the act of pouring through or over; especially the passage of a fluid through the vessels of a specific organ.
2. a liquid poured through or over an organ or tissue.
the gradient between arterial blood pressure and venous pressure in a comparable location in the vascular tree.
blood flow through the pulmonary capillaries.
the rate of perfusion in the kidney is much higher than in any other organ. The rate of formation of urine depends to a large extent on the perfusion rate.
using pulmonary scintigraphy, radionucleotide agents injected into a peripheral vein can be detected where it is trapped in the pulmonary capillary bed. Used to assess pulmonary blood flow.
maintenance of blood circulation to tissues during cardiopulmonary bypass.
see ventilation: perfusion ratio.