Analytical signal method for analysis of T-wave alternans
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United States of America Patent
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May 11, 2004
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N/A
app pub date -
Sep 29, 2000
filing date -
Sep 29, 1999
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Abstract
Alternans is measured in a physiological signal, such as an electrocardiogram, by processing the physiological signal to create a processed signal having an asymmetric spectrum, and processing the processed signal to measure alternans in the physiologic signal. The physiological signal may be processed to produce an analytical signal by converting the signal to the frequency domain, removing components corresponding to negative frequencies, and converting back to the time domain.
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