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Method and apparatus for detecting cardiac repolarization abnormality

  • US 7,509,159 B2
  • Filed: 04/15/2004
  • Issued: 03/24/2009
  • Est. Priority Date: 04/15/2004
  • Status: Active Grant
First Claim
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1. A method of detecting cardiac repolarization abnormality using at least one electrocardiogram signal, the method comprising:

  • deriving a total quantity of representative beats of the at least one electrocardiogram signal taken from a patient ECG;

    using at least one morphology shape descriptor to determine a total quantity of values representing the total quantity of representative beats;

    generating a template using at least one value corresponding to at least one of the representative beats;

    comparing the template and at least one value corresponding to at least one other of the representative beats for a variation;

    comparing the variation to a threshold value, wherein the threshold value is derived from trending, further wherein trending includes a time serial analysis; and

    using data corresponding to at least some of the total quantity of values to assess cardiac repolarization abnormality in the patient.

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