Microspheres, Regional Blood Flow Measurement
Definition : Microspheres that are radio or fluorescent labeled to facilitate their detection; they are typically 10 to 20 microns in diameter. These microspheres are injected into the arteries that supply blood to a specific organ or tissue; the regional blood flow (i.e., regional perfusion) is determined by measuring the quantity of microspheres that reach the small vessels, using either scintigraphy techniques for radio-labeled microspheres or other appropriate detection methods for fluorescent-labeled microspheres (e.g., histologic methods). Regional blood-flow measurement microspheres are mostly used to determine blood flow in the vasculature of the heart, lung, kidney, and pancreas.
Entry Terms : "Blood Flow Measurement Microspheres"
UMDC code : 20404