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Real time computerization of two-dimensional echocardiography

E Garcia, P Gueret, M Bennett

    American Heart Journal
    |June 1, 1981
    PubMed
    Summary
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    A new computerized system enhances real-time analysis of left ventricular function using two-dimensional echocardiography (2DE). This digital acquisition and data analysis method offers significant advancements for quantifying cardiac performance.

    Area of Science:

    • Cardiovascular Imaging
    • Medical Informatics
    • Echocardiography

    Background:

    • Two-dimensional echocardiography (2DE) is a key imaging modality for assessing cardiac function.
    • Quantifying left ventricular function from 2DE data has historically faced challenges in real-time processing and analysis.

    Purpose of the Study:

    • To develop and evaluate a computerized system for real-time acquisition, processing, and analysis of 2DE images of the left ventricle.
    • To improve the accuracy and quantitation of left ventricular function assessment using 2DE.

    Main Methods:

    • Coupling a standard computer system to 2DE video output for digitized image acquisition (128x128 or 64x64 matrix).
    • Implementing real-time, beat-to-beat, and frame-by-frame processing with space-time smoothing and automatic endocardial interface detection.

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  • Utilizing a leading-to-leading outline technique for improved cross-sectional definition and analysis of regional wall motion/thickness in 12 sectors.

    • Main Results:

    • The system enables real-time display of multiple views with 256 gray levels and color.
    • Demonstrated analysis of frame-by-frame changes throughout the cardiac cycle and regional variations in wall motion and thickness.
    • Validated the methodology in clinical applications including exercise testing, myocardial infarction studies, and intervention assessments.

    Conclusions:

    • The developed real-time computerized digital acquisition and data analysis system represents a significant advancement for left ventricular function quantitation using 2DE.
    • This methodology facilitates objective and detailed analysis of cardiac contraction dynamics.
    • Offers potential for enhanced clinical decision-making in cardiology.