Blood Flow Measured by Doppler Frequency Shift of Back-Scattered Ultrasound

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Science  25 Aug 1961:
Vol. 134, Issue 3478, pp. 564-565
DOI: 10.1126/science.134.3478.564


The Doppler shift of ultrasound, scattered from moving elements within a stream of blood, is related to the velocity of blood flow. A flowmeter based on this principle has been constructed and was used to record blood flow through intact vessels in dogs.