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A technique to evaluate the performance of computerized ECG analysis systems.

U Teppner1, S Lobodzinski, D Neubert

  • 1Physikalisch-Technische Bundesanstalt, Berlin, West Germany.

Journal of Electrocardiology
|October 1, 1987
PubMed
Summary

A new "electronic test patient" instrument and database enable objective testing of computerized electrocardiogram (ECG) systems. This facilitates accurate verification of ECG instrumentation and algorithms for improved diagnostic reliability.

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Area of Science:

  • Biomedical Engineering
  • Medical Instrumentation
  • Cardiology

Background:

  • Objective testing methods for computerized electrocardiogram (ECG) systems have been lacking.
  • Previous ECG system tests were conducted separately for instrumentation and algorithms, limiting comprehensive verification.

Purpose of the Study:

  • To introduce a novel high-resolution, low-noise instrument, termed an "electronic test patient," for objective verification of computerized ECG equipment.
  • To describe the accompanying electrocardiographic database designed for comprehensive ECG system testing.

Main Methods:

  • Developed a high-resolution, low-noise instrument with simultaneous 10 kHz sampling for 12-lead and Frank systems, featuring a 90 dB dynamic range and 1 microV RMS noise.
  • Created a high-bandwidth minidatabase of verified electrocardiograms (infarctions, hypertrophies, arrhythmias) with simultaneous lead signals and diagnostic reports.

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  • Connected systems under test via patient cable to the instrument's analog output for testing against the validated database.

    • Main Results:

    • The instrument preserves ECG signals within the 0 to 1 kHz frequency range without introducing disturbances.
    • The electronic test patient and its database allow for simultaneous testing of both ECG instrumentation and algorithms.
    • The database is compatible with any electrocardiographic system, offering a standardized testing approach.

    Conclusions:

    • The developed "electronic test patient" and its integrated electrocardiographic database provide an objective method for testing modern computerized ECG systems.
    • This facilitates the reliable verification of ECG instrumentation and diagnostic algorithms.
    • The system enhances the accuracy and dependability of computerized ECG analysis.