Patent ID: 6223073
Filing Date: 2001-04-24
Classification: A61B,G16H

Abstract:
A noninvasive method of investigating cardiac status of a subject and enabling classification of said subject into normal and abnormal cardiac categories utilizing electrocardiography ECG data obtained therefrom, comprising the steps of:a. obtaining data from a selection from the group consisting of:an ECG cycle from a subject, anda plurality of ECG cycle(s) from said subject, followed by calculating an average selected ECG cycle portion data set by a procedure comprising combining corresponding ECG cycle portion data points for said selected ECG cycle(s);and obtaining data from a selection from the group consisting of:an ECG cycle from a subject identified as normal, anda plurality of ECG cycle(s) from said subject(s) identified as normal, followed by calculating an average selected ECG cycle portion by a procedure comprising combining corresponding ECG cycle portion data points for said selected ECG cycle portion for ECG cycle(s);then selecting frequency band(s), and separately applying necessary filtering techniques to said data obtained from said subject and to said data obtained from subject(s) identified as normal, to separate the data obtained from said subject into at least one frequency band(s), and said data obtained from said subject(s) identified as normal into essentially equivalent frequency band(s);b. establishing criteria for, and in line therewith selecting some ECG cycle portion and arriving at representative parameter(s) for each selected frequency band for data obtained from each of the subject and the subject(s) identified as normal;c. comparing said subject representative parameter(S) with corresponding subject(s) identified as normal representative parameter(s); andd. combining selected differences between corresponding subject and subject(s) identified as normal representative parameter(s) to arrive at a score, said score being the result of differences in magnitudes of corresponding subject and normal representative parameter(s);e. providing an output means and presenting said score by use thereof; andf. utilizing said score as desired.