perfusion scan

perfusion scan.

See perfusion lung scan.

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perfusion

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.

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perfusion pressure

the gradient between arterial blood pressure and venous pressure in a comparable location in the vascular tree.

pulmonary perfusion

blood flow through the pulmonary capillaries.

renal perfusion

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.

perfusion scan

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.

perfusion technique

maintenance of blood circulation to tissues during cardiopulmonary bypass.

perfusion:ventilation ratio

see ventilation: perfusion ratio.

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perfusion scan

Perfusion 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.