Patent ID: 8346351

Claim:
A method, preformed by a computing system, for modeling heart rate adaptation for determining a patient specific QT-RR curve, comprising: providing electrophysiological data for a specific patient; determining observed QT durations and observed RR i values for a plurality of heart beats of the specific patient from the electrophysiological data; ascertaining, using one or more processers of the computing system, effective RR intervals for the plurality of heart beats by weight-averaging the observed RR i values according to the equation Effective RR i =C ×Effective RR i−1 +(1 −C )×[ RR weighted ], where C is a number between 0 and 1, and where RR weighted is based on the observed RR i value and a predicted RR i value; finding a value C f defined by a value of C where a curve fitted to the observed QT durations and the ascertained effective RR intervals is within a desired standard deviation; and providing an assessment of a condition of the specific patient based upon the curve defined by the C f .