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
Method for controlling a motor
Apparatus and method of preventing signal delay in display device
Pharmaceutical dosage form
Focus detection device and imaging apparatus having the same
Deflection device for a scanner with Lissajous scanning
Vehicles with electric motor
Transcription factor
  Randomly Featured Patents
Reliable multicast with automatic session startup and client backfil support
Method and apparatus for integrated local and express routing in a multiprocessor
Thermal printer for providing printed characters with a uniform density
Medical data storage device
Device for controlling water level
Integrated circuit and associated fabrication process
Absorbing element for sanitary products, having expandable pockets containing superabsorbent material and manufacturing process
Enhancing the efficiency of energy transfer to/from passive ID circuits using ferrite cores
Fryer filter and pump
Method and apparatus for coordinating adjacent channel transmissions on multiple radio nodes