Electrocardiogram enhancement system and method

Details Electrocardiogram enhancement system and method Electrocardiogram enhancement system and method

1986-12-31

1989-09-05

Picard, Leo P.

Surgery

Truss

Pad

128696, 128710, A61B 502

Patent

active

048628972

ABSTRACT:
An electrocardiogram enhancement system and apparatus is provided. Small amplitude, high frequency notches associated with myocardial disease and arrhythmias can be recorded by conventional chart recorders. In addition, the notches are clearly visible in the recorded waveform for visual detection and analysis of the notches by medical personnel.
In the system of the present invention electrocardiogram signals having small amplitude, high frequency notches are enhanced; first, by selectively amplifying the notches while keeping the amplitude of the remainder of the waveform constant and, second, by uniformly expanding the signal in the time domain wherein the inter-component frequency and inter-component phase relationships are maintained.

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Langner et al., "Wide Band Recording of the Electrocardiogram and Coronary Heart Disease", American Heart Journal, Sep. 1973, vol. 86, No. 3, pp. 308-317.

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