A Real-Time Ultrasound Time-Domain Correlation Blood Flowmeter: Part I—Theory and Design

I. A. Hein, J. T. Chen, William Kenneth Jenkins, W. D. O'Brien

    Research output: Contribution to journalArticle

    23 Scopus citations

    Abstract

    A real-time ultrasound time-domain correlation (UTDC) blood flowmeter has been developed. Real-time performance has been achieved through the implementation of a custom-designed high-speed residue-number system (RNS) hardware correlator. The flowmeter is interfaced to a commercial ultrasound imager and can produce one-dimensional velocity versus range graphs at a rate of three per second. It has been validated in a blood flow phantom under a variety of conditions along with in vivo measurements in the human carotid artery. Part I of this work describes the theory of the time-domain correlation technique, design and implementation of flowmeter hardware, and the important correlation parameters which affect the performance of the flowmeter. Part II presents selection of the optimal real-time correlation parameters and experimental results obtained using the system and parameters.

    Original languageEnglish (US)
    Pages (from-to)768-775
    Number of pages8
    JournalIEEE transactions on ultrasonics, ferroelectrics, and frequency control
    Volume40
    Issue number6
    DOIs
    StatePublished - Jan 1 1993

    All Science Journal Classification (ASJC) codes

    • Instrumentation
    • Acoustics and Ultrasonics
    • Electrical and Electronic Engineering

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