Key result
Doppler-shifted ultrasound enables non-invasive measurement of blood-flow velocity and volume across intact vessels.
Why the study?
Accurate quantitative measurement of blood-flow velocity and volume flow rate using ultrasonic methods is challenged by natural constraints and potential sources of error.
Population
Wide range of intact blood vessels from fractions of a millimetre to several centimetres
Comparison
Various ultrasonic flowmeter techniques including transit-time, continuous-wave Doppler, and multigate pulsed Doppler
Design
Review of ultrasonic flow measurement methods and signal-processing stages
Authors
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May support non-invasive vascular monitoring; leaves open prospective validation before routine adoption.
Provides a technical overview of ultrasonic flowmeters and Doppler techniques for measuring blood flow velocity and volume flow rate, including potential sources of error.
A. L. Stevens (1982) reported a review. Doppler-shifted ultrasound was evaluated. Doppler-shifted ultrasound techniques enable non-invasive quantitative measurement of blood-flow velocity and volume flow rate across a wide range of intact blood vessels.
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