Method and apparatus for analyzing and interpreting electrocardiograms using spectro-temporal mapping
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United States of America Patent
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Aug 14, 1990
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N/A
app pub date -
Feb 1, 1989
filing date -
Feb 1, 1989
priority date (Note) -
Expired
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Abstract
Method and apparatus for analyzing ECG signal data for diagnostic purposes by performing an incrementally moving, short window FFT analysis to produce a set of spectral templates representative of the spectral frequency content of the ECG at each window position. The spectral templates may be displayed as a representation of a three dimensional surface or mathematically analyzed. The changes in the shape of the templates or surface with time represent a change in the spectrum, which are shown to be an indication of abnormalities in the heart.
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