Neue Grundlagen und Theorien zur Verbesserung der Angio-Cine-Densitometrie. V. Der Einfluß des Injektionsmodus der Kontrastsubstanz auf das Meßergebnis bei der Angio-Cine-Densitometrie

Abstract

The theoretical basis for measuring speed of flow in vessels of conscious patients obtained by estimating dilution of injected contrast is described. Previously, measurements at two separate points had to be carried out in order to obtain a flow profile, but with the present method, a single measurement point is adequate. If contrast is distributed evenly in the circulation during its flow to the periphery, the measurement can be carried out at some distance from the point of injection. The ability to select ones point of measurement makes it possible to avoid areas covered by overlying shadows and eliminates the difficulties inherent in measurements in curved vessels.