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
Light-source control device, light-source control method, image reading device, and image forming apparatus
Catalyst composition comprising shuttling agent for ethylene multi-block copolymer formation
Systems and methods for implementing pressure sensitive keyboards
Vectorization of program code
Imidazole-5-carboxylic acid derivatives, the preparation method therefor and the uses thereof
Loudspeaker grille
Collaborative data redundancy for configuration tracking systems
  Randomly Featured Patents
Spread-spectrum receivers with extended dynamic range
Method and apparatus of arranging priority queue and arbitrating for memory access requests
Display apparatus and control circuit thereof
Output driver circuit
Method of and device for coding speech signals with analysis-by-synthesis techniques
Systems and methods for user sessions with dynamic service selection
Signal receiver devices and methods
In-plane switching LCD device comprising common electrode offshoots arranged at two different planes on the lower substrate with the electrode offshoots on higher plane overlapping the ones on
Vehicle headlamp