Resources Contact Us Home
Detection of cardiac arrhythmia using mathematical representation of standard .DELTA.RR probability density histograms

Image Number 13 for United States Patent #7146206.

A method and a system for detecting cardiac arrhythmias that includes detecting RR intervals of the patient wherein each RR interval is an interval between two heart beats, and simulating standard probability density histograms of .DELTA.RRs by means of a suitable probability distribution calculated through at least one mathematical formulae, wherein .DELTA.RR is a difference between two successive RR intervals. Test probability density histograms of .DELTA.RRs of the patient are constructed from the detected RR intervals. Finally, the standard and test histograms are compared to detect whether the patient suffers from cardiac arrhythmia. As non limiting examples, the standard probability density histograms of .DELTA.RRs are modeled by a mathematical equation selected from the group consisting of: the Lorentzian distribution, the Gaussian distribution, the Student's t-distribution, and a probability distribution including a linear combination of the Lorentzian and Gaussian distribution.

  Recently Added Patents
Liquid crystal display device
Round carrying case
Vacuum cleaner filter adapter ring
Providing user interfaces and window previews for hosted applications
Message processing method and apparatus based on the SIP protocol and an IP communication system
Method of sending CTI messages in a communication system
  Randomly Featured Patents
Electromotive power steering
Stabilized aspirin compositions and method of preparation for oral and topical use
Shaped groove countermatrix for rotary groove pulley matrix and countermatrix bending head pipe bending machines
Electrolysis of sodium chloride with the use of ion exchange membranes
System and method for circuit symbolic timing analysis of circuit designs
Signal detecting device
ROM embedded DRAM with bias sensing
Vehicle lift gate
Vehicular seat construction
Process for improving the flame-resistant properties of aramid fibers