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
Polymer compositions and nonwoven compositions prepared therefrom
Non-volatile flash-RAM memory with magnetic memory
Reaction medium for detecting and/or identifying bacteria of the Legionella genus
Lens module and method for manufacturing thereof
Vectorization of program code
Weighted determination in configuration management systems
Weight-balanced polygonal mirror, light scanning unit using the polygonal mirror, and image forming apparatus
  Randomly Featured Patents
Integrated circuit with improved current mirror impedance and method of operation
Arithmetic unit for use in data processing systems
Ultrasonic flow sensor having reflecting interface
Palmtop computer stand
Method and compositions for the synthesis of BCH-189 and related compounds
Beta-aminoethylsilanes and a method of preparing same
Head gimbal assembly including a conductive trace disposed upon a continuous dielectric layer segment without overlying a gimbal arm
Flip chip package utilizing trace bump trace interconnection
Mechanically erasable printing liquid
Insulated gate bipolar transistor with current detection function