Patent ID: 7983742
Filing Date: 2011-07-19
Classification: A61B,Y10S

Abstract:
1. A method for analyzing electrocardiograph signals from a plurality of ECG leads comprising the steps of: sensing analog fluctuations in voltage simultaneously from the plurality of ECG leads, the fluctuations in voltage resulting from electrical activity of a heart and defining a plurality of analog signals; converting such signals having an analog value to digital values corresponding substantially to the analog value of the signals; analyzing the digital values of the record in real-time by: utilizing the defined individual templates to determine alteration values for individual T waves and QRS waves of an individual heartbeat, the alteration values comprising shifts in time of the T wave and QRS wave as error functions for the heartbeat; and assessing changes in QT interval for each heartbeat using the T wave template, the QRS wave template, and the series of heartbeats to determine beat-to-beat variability of the QT intervals of the heartbeats.