Patent ID: 8457724
Filing Date: 2013-06-04
Classification: A61B

Abstract:
1. A system configured for heart performance characterization and abnormality detection, comprising: an acquisition device configured for acquiring an electrophysiological signal representing a heart beat cycle of a patient heart; a detector configured for detecting a plurality of parameters of said electrophysiological signal comprising at least one of, (a) amplitude, (b) time duration, (c) frequency and (d) time-frequency, representative parameters; a signal analyzer configured for calculating at least one ratio of the detected parameters from ratios including, (i) ratio of T wave amplitude to P wave amplitude, (ii) ratio of time duration of ST wave to time duration of PR wave, (iii) ratio of a frequency of a PR wave to a frequency of a RT wave and (iv) ratio of a time-frequency measure of a PR wave to a time-frequency measure of a RT wave; a comparator configured for determining whether the at least one calculated ratio exceeds a predetermined upper limit threshold or a predetermined lower limit threshold; and an output processor configured for generating data representing an alert message in response to said calculated ratio exceeding a predetermined threshold.