[The "spill-over" method for flow measurements].
"Spill-over" measurement is a simple method for estimating arterial blood flow during selective angiography. It depends on a direct comparison between a known contrast flow rate and the unknown blood flow in the aortic branch that is being examined. The criterion crucial to the measurement is the back-flow of contrast into the aorta. By means of model and animal experiments, it has been established why back-flow occurs and which factors favour or retard back-flow and thereby falsify the results. The results of "spill-over" measurements were compared with electro-magnetic measurements. A modification of the "spill-over" method is described, which makes it suitable for routine use in visceral angiography.
D000818:Animals; D001783:Blood Flow Velocity; D003287:Contrast Media; D004285:Dogs; D055590:Electromagnetic Phenomena; D008722:Methods
D003287:Contrast Media
Die Spillover-Flussmessung.