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Low perfusion signal processing systems and methods

  • US 8,082,110 B2
  • Filed: 10/10/2008
  • Issued: 12/20/2011
  • Est. Priority Date: 07/15/2008
  • Status: Active Grant
First Claim
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1. A method for processing a biological signal comprising:

  • receiving a signal at a processor;

    transforming using the processer the signal using at least a wavelet transform;

    generating using the processer a scalogram based at least in part on the transformed signalidentifying using the processer a pulse band in the scalogram;

    identifying using the processer a marker region in the scalogram, wherein the marker region is adjacent the pulse band;

    identifying using the processer a characteristic of the marker region;

    determining, using the processer, based at least in part on the characteristic of the marker region and a threshold for the characteristic of the marker region, that a low perfusion condition exists; and

    triggering an event.

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