×

System and method for classifying cardiac depolarization complexes with multi-dimensional correlation

  • US 7,610,084 B2
  • Filed: 06/07/2006
  • Issued: 10/27/2009
  • Est. Priority Date: 06/05/2001
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for classifying a sensed cardiac depolarization complex, comprising:

  • sensing a plurality of depolarization waveforms resulting from a cardiac depolarization complex, wherein each of the plurality of sensed waveforms is sensed with a sensing channel having a different electrode configuration, and generating digital samples of the sensed waveforms over a defined period of time to result in a sample set for each sensed waveform;

    storing the sample set of each sensed waveform in a sensed sample array and a sample set of each corresponding waveform of a template depolarization complex in a template sample array;

    computing a multi-dimensional correlation between the sensed sample arrays and the corresponding template sample arrays;

    classifying the sensed depolarization complex is as being equivalent to the template complex if the multi-dimensional correlation indicates a specified degree of similarity;

    grouping samples of the sensed and template waveforms at a particular sampling time into a sensed complex vector and template complex vector, respectively; and

    ,adding one or more parameter features to the sensed and template complex vectors, wherein a parameter feature is defined as the deviation from a mean value of a measurable parameter related to a cardiac depolarization complex.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×