Related Experiment Video
Updated: Aug 15, 2026

Blood Flow Imaging with Ultrafast Doppler
Published on: October 14, 2020
[Flow time analysis in sonographic flow measurements: an in vitro measurement for testing their accuracy]
H Riediger1, K W Sievers, E Löhr
1Röntgendiagnostisches Zentralinstitut des Universitätsklinikums Essen.
Abstract:
Flow-time analysis is a new technique for colour coded sonographic flow measurements. The measurements depend on a pattern of ultrasound pulses and have some significant advantages compared with Doppler procedures. The accuracy of the method and possible sources of error have been studied under experimental conditions. Measurements on continuous blood flow showed a correlation of r > 0.99 for duplex sonography and of r > 0.93 for flow-time analysis. For this method, the colour coding parameters must be optimal in order to achieve high accuracy. Under these conditions quantitative measurement of pulsatile flow also becomes possible during colour mode.
Related Concept Videos
Blood Flow
Flow Cytometry
In...
Pipe Flowrate Measurement
The orifice meter is a simple,...

