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
Concentrating photovoltaic system module with actuator control
Asynchronous loading of scripts in web pages
Can seam inspection
Case for electronic device
Turbulence sensor and blade condition sensor system
Printer driver, printer control method, and recording medium
Idle stop and go system and method for controlling thereof
  Randomly Featured Patents
Fail-safe machine control system
Method for allocating lot priority by ranking lots as a function of budget queue time in a manufacturing control system
Substituted 2-amidotetralins as melatonin agonists and antagonists
Method and apparatus implementing virtualization for data migration with the efficient use of old assets
Enabling a clustered namespace with redirection
Bias and discharge system for low power loss start up and input capacitance discharge
Method and apparatus for assuring pacer programming is compatible with the lead
Dynamic service level allocation system and method
Electronic transmission shift control