Method of analyzing cardiac data using correlation plots
First Claim
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1. A process for converting and displaying physiological data so that it can be more readily analyzed empirically, comprising:
- (a) obtaining a time series composed of successive time delays of a single variable;
(b) generating a vector from said time series;
(c) generating a collection of vectors from respective such time series;
(d) determining the proximity or correlation of pairs of said respective vectors and generating a color value corresponding to each such proximity; and
(e) providing a color-coded display of said determined proximities, representing a correlation plot.
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Abstract
A method of converting apparently chaotic time series data to a visual texture which, when displayed, can be really analyzed empirically. Correlation plots of vectors derived from time series of heartbeat intervals are displayed in color, to reveal useful information. The invention is particularly useful in a hospital cardiac environment, where subtle changes in cardiac rhythm can, with the method of this invention, provide evidence of abnormal cardiac functions.
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4 Claims
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1. A process for converting and displaying physiological data so that it can be more readily analyzed empirically, comprising:
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(a) obtaining a time series composed of successive time delays of a single variable; (b) generating a vector from said time series; (c) generating a collection of vectors from respective such time series; (d) determining the proximity or correlation of pairs of said respective vectors and generating a color value corresponding to each such proximity; and (e) providing a color-coded display of said determined proximities, representing a correlation plot. - View Dependent Claims (2, 3, 4)
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Specification