System and method of identifying sources for biological rhythms

摘要

In a system and method of determining regularity associated with a rhythm disorder of a heart, a derivative of a first cardiac signal at a plurality of first time points is processed against a derivative of a second cardiac signal at a plurality of second time points to define a plurality of coordinate pairs of the first cardiac signal against the second cardiac signal. Thereafter, an index of regularity that exceeds a threshold is determined. The index of regularity indicates an approximate congruence of the plurality of coordinate pairs among the first cardiac signal and the second cardiac signal.

主权项

1. A method of determining regularity associated with a rhythm disorder of a heart, the method comprising:
processing by a computing device a derivative of a first cardiac signal associated with a first location at a plurality of first time points against a derivative of a second cardiac signal associated with a second location at a plurality of second time points to define a plurality of coordinate pairs of the first cardiac signal against the second cardiac signal, wherein the derivative of the first signal and the derivative of the second signal are one of a first order derivative and a higher order derivative; and determining by the computing device an index of regularity that exceeds a threshold, the index of regularity, associated with periodic repeating activity, indicating an approximate congruence of the plurality of coordinate pairs among the first cardiac signal and the second cardiac signal.