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System and method for reconstructing cardiac activation information

  • US 9,468,387 B2
  • Filed: 05/28/2015
  • Issued: 10/18/2016
  • Est. Priority Date: 05/02/2011
  • Status: Active Grant
First Claim
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1. A method of reconstructing cardiac activation information, the method comprising:

  • accessing, by a computing device, pairs of cardiac signals out of a plurality of cardiac signals obtained from a patient, the pairs having a first cardiac signal that is common among the pairs and second cardiac signals that are different among the pairs;

    processing, by the computing device, the first cardiac signal and the second cardiac signals of the pairs to identify points of change in the first cardiac signal at which a derivative of the first cardiac signal diverges with respect to derivatives of the second cardiac signals;

    determining, by the computing device, a correspondence among the points of change; and

    assigning, by the computing device, an activation onset time at a point in the first cardiac signal based on the correspondence among the points of change to define a cardiac activation, wherein the cardiac activation indicates a beat in the first cardiac signal.

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