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[The "spill-over" method for flow measurements].

J Schröder·B Terwey·H Keller·U Mittmann
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Abstract

"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.

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J Schröder, B Terwey, H Keller, U Mittmann. 1983. [The "spill-over" method for flow measurements].. https://doi.org/10.1055/s-2008-1055731

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