Title :
Ultrasonic blood flowmeter yielding instantaneous velocity profile by real-time phase detection
Author_Institution :
Institut fÿr Biomedizinische Technik der Universitat und ETH Zÿrich, Zÿrich, Switzerland
Abstract :
A new method of measuring the spatial velocity profile in blood vessels is presented. It is based on the detection of the phase difference between successive echoes arising from bursts of ultrasound. The echoes are preconditioned by a circuit that cancels the stationary components without affecting the range information.
Keywords :
biomedical measurement; flow measurement; flowmeters; haemodynamics; ultrasonic applications; ultrasonic devices; US flowmeter; blood vessels; real time phase detection; spatial velocity profile;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750139
