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Related Experiment Videos

An analogue echogram range gate tracker for clinical echocardiography.

M L Petrovick, G S Malindzak, E D Haak

    Journal of Medical Systems
    |January 1, 1979
    PubMed
    Summary

    This study presents a real-time automatic range gate tracker (ARGT) for echocardiography, enabling noninvasive cardiac output determination. The ARGT system successfully derives cardiac dimensions and computes cardiac output from tracked cardiac echoes.

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    Area of Science:

    • Biomedical Engineering
    • Cardiovascular Imaging
    • Medical Devices

    Background:

    • Echocardiography is a vital tool for assessing cardiac function.
    • Accurate, real-time measurement of cardiac output is crucial for clinical decision-making.
    • Existing methods for cardiac output determination may have limitations in real-time, noninvasive application.

    Purpose of the Study:

    • To evaluate the feasibility of an on-line, real-time automatic range gate tracker (ARGT) for clinical echocardiography.
    • To enable noninvasive, real-time determination of cardiac output using echocardiography.
    • To develop a system that assists in user interpretation of echocardiograms.

    Main Methods:

    • Implementation of specific algorithms and a system controller for the ARGT.

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  • User-guided selection of cardiac echoes for tracking.
  • Automatic tracking of selected cardiac echoes in real-time.
  • Conversion of ultrasonic echograms into analogue signals representing left ventricular wall motion.
  • Derivation of dimensional information and dynamic geometric changes of the heart.

    • Main Results:

    • The ARGT system demonstrated feasibility for on-line, real-time operation.
    • The system successfully tracked cardiac echoes as selected by the user.
    • Meaningful analogue signals corresponding to left ventricular wall motion were generated.
    • Dimensional information and dynamic cardiac geometry were derived.
    • Real-time computation of cardiac output was achieved.

    Conclusions:

    • The developed automatic range gate tracker (ARGT) is a feasible tool for clinical echocardiography.
    • The ARGT system facilitates noninvasive, real-time cardiac output measurement.
    • This technology has the potential to enhance the clinical utility of echocardiography for cardiovascular assessment.