Method an apparatus for detection of heart disease
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United States of America Patent
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Mar 6, 1990
Grant Date -
N/A
app pub date -
Apr 20, 1988
filing date -
Apr 20, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for detection of coronary artery disease. The apparatus records and analyzes that portion of the phonocardiogram lying between about 100 to 600 Hz. An electrocardiogram is also recorded and examined in order to pinpoint the diastolic window of PCG data. This window of data is subject to autocorrelation analysis and spectral analysis, resulting in a partial correlation coefficient index and a power density index. A linear combination of these two indices results in a Cardiac Screening Index which is indicative of the presence or absence of coronary artery disease.
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