A Real-Time Ultrasound Time-Domain Correlation Blood Flowmeter: Part II—Performance and Experimental Verification

I. A. Hein; W. D. O'Brien

doi:10.1109/58.248223

A Real-Time Ultrasound Time-Domain Correlation Blood Flowmeter: Part II—Performance and Experimental Verification

Research output: Contribution to journal › Article › peer-review

Abstract

The theory and design of a real-time ultrasound time-domain correlation (UTDC) flowmeter employing a high-speed residue number system correlator has been presented in Part I [4] of this work. Part II evaluates the performance of the flowmeter under various flow conditions for different correlation parameter settings. Previous work has incorporated a weighted-averaging scheme to estimate the flow velocity over a wide number of echo signal spacings. This research indicates that a linear averaging of 50 adjacent echo signal pairs produces equivalent accuracy and precision at real-time processing speed as compared to previous non-real time systems incorporating weighted averaging.

Original language	English (US)
Pages (from-to)	776-785
Number of pages	10
Journal	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume	40
Issue number	6
DOIs	https://doi.org/10.1109/58.248223
State	Published - Nov 1993

ASJC Scopus subject areas

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

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10.1109/58.248223

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abstract = "The theory and design of a real-time ultrasound time-domain correlation (UTDC) flowmeter employing a high-speed residue number system correlator has been presented in Part I [4] of this work. Part II evaluates the performance of the flowmeter under various flow conditions for different correlation parameter settings. Previous work has incorporated a weighted-averaging scheme to estimate the flow velocity over a wide number of echo signal spacings. This research indicates that a linear averaging of 50 adjacent echo signal pairs produces equivalent accuracy and precision at real-time processing speed as compared to previous non-real time systems incorporating weighted averaging.",

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note = "Funding Information: Manuscript received January 24, 1992; revised May 11, 1993; accepted May 13, 1993. This work was supported by the National Institutes of Health, and the National Heart, Lung, and Blood Institute under Grant HL39704 and the Illinois Department of Commerce and Community Affairs.",

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A Real-Time Ultrasound Time-Domain Correlation Blood Flowmeter: Part II—Performance and Experimental Verification

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