System for and method of analyzing electrocardiograms employing chaos techniques
First Claim
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1. A method for analyzing an electrocardiogram, comprising the steps of:
- detecting an electrocardiogram signal from an examinee and extracting electrocardiogram time series data from the detected electrocardiogram signal;
executing a base line adjustment for the extracted electrocardiogram time series data;
reconstructing an electrocardiogram attractor of the examinee on the basis of the base line-adjusted electrocardiogram time series data; and
comparing the reconstructed electrocardiogram attractor with a variety of electrocardiogram attractors previously derived and diagnosing health and psychological conditions of the examinee on the basis of the result of the comparison.
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Abstract
A system and method for analyzing an electrocardiogram (ECG) acquires ECG time series data from an examinee'"'"'s ECG signal in a real time, subjects the acquired ECG time series data to a base line filtering, reconstructs an ECG attractor on the basis of the base line-filtered time series data by use of qualitative and quantitative analysis methods, and derives a correlation dimension value on the basis of the reconstructed ECG attractor, whereby the examinee'"'"'s health and psychological conditions can be accurately diagnosed on the basis of the reconstructed attractor and correlation dimension value.
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Citations
16 Claims
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1. A method for analyzing an electrocardiogram, comprising the steps of:
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detecting an electrocardiogram signal from an examinee and extracting electrocardiogram time series data from the detected electrocardiogram signal; executing a base line adjustment for the extracted electrocardiogram time series data; reconstructing an electrocardiogram attractor of the examinee on the basis of the base line-adjusted electrocardiogram time series data; and comparing the reconstructed electrocardiogram attractor with a variety of electrocardiogram attractors previously derived and diagnosing health and psychological conditions of the examinee on the basis of the result of the comparison. - View Dependent Claims (2, 3, 4)
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5. A method for analyzing an electrocardiogram, comprising the steps of:
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detecting an electrocardiogram signal from an examinee and extracting electrocardiogram time series data from the detected electrocardiogram signal; executing a base line adjustment for the extracted electrocardiogram time series data; reconstructing an electrocardiogram attractor of the examinee on the basis of the base line-adjusted electrocardiogram time series data; extracting a correlation dimenions value on the basis of the reconstructed electrocardiogram attractor; and comparing the reconstructed electrocardiogram attractor and the extracted correlation dimension value respectively with a variety of electrocardiogram attractors previously derived and a variety of correlation dimension values previously derived and diagnosing health and psychological conditions of the examinee on the basis of the result of the comparison. - View Dependent Claims (6, 7)
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8. An electrocardiogram analyzing system comprising:
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a control unit for controlling all constituting units of the system; an electrocardiogram data detecting unit for sensing a pulsation of an examinee'"'"'s heart and thereby outputting electrocardiogram time series data; an analog/digital-converting unit for converting the electrocardiogram time series data outputted from the electrocardiogram data detecting unit, and appropriately extracting digital data required for an attractor reconstruction from the converted electrocardiogram time series data under control of the control unit; a base line adjusting unit for executing a base line filtering for the extracted electrocardiogram time series data; an attractor reconstructing unit for reconstructing an electrocardiogram attractor of the examinee on the basis of the base line-filtered electrocardiogram time series data; and a diagnosing unit for comparing the reconstructed electrocardiogram attractor with a variety of electrocardiogram attractors experimentally obtained and determining health and psychological conditions of the examinee on the basis of the result of the comparison. - View Dependent Claims (9, 10, 11)
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12. An electrocardiogram analyzing system comprising:
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detecting means for detecting an electrocardiogram signal from an examinee and extracting electrocardiogram time series data from the detected electrocardiogram signal; executing means for executing a base line adjustment for the extracted electrocardiogram time series data; reconstructing means for reconstructing an electrocardiogram attractor of the examinee on the basis of the base line adjusted electrocardiogram time series data; and comparing means for comparing the reconstructed electrocardiogram attractor with a variety of electrocardiogram attractors previously derived and diagnosing health and psychological conditions of the examinee on the basis of the result of the comparison. - View Dependent Claims (13, 14, 15, 16)
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Specification