Systems and methods for cardiac segmentation analysis
First Claim
1. A device for tracking the cardiovascular condition of a human patient, the device including:
- a sensor adapted to sense the signal from the patient'"'"'s heart, the signal being a waveform which is related to of a multiplicity of beats,a digital processor configured to compute from the waveform a plurality of values of a heart signal feature, the digital processor further configured to (i) partition cardiac data corresponding to a plurality of heart beats into a plurality of cardiac segments, wherein the partitioning is performed according to patient state information;
(ii) compute a segment score for each of the plurality of cardiac segments using at least one segment score rule, thereby generating a set of segment scores, wherein each segment score characterizes a feature of each of the cardiac segments;
(iii) apply at least one diagnostic rule to the set of segment scores to detect the occurrence of a cardiac abnormality.
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Abstract
A system for the detection of cardiac events occurring in a human patient is provided. At least two electrodes are included in the system for obtaining an electrical signal from a patient'"'"'s heart. An electrical signal processor is electrically coupled to the electrodes for processing the electrical signal. Electrical signals are acquired in segments and segment score rules are applied to the segments to classify them. To detect an abnormal cardiovascular condition, diagnostic rules are applied to the classification data. Patient state information modulates the acquisition of electrical data, the application of segment score rules, and the application of diagnostic rules.
96 Citations
28 Claims
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1. A device for tracking the cardiovascular condition of a human patient, the device including:
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a sensor adapted to sense the signal from the patient'"'"'s heart, the signal being a waveform which is related to of a multiplicity of beats, a digital processor configured to compute from the waveform a plurality of values of a heart signal feature, the digital processor further configured to (i) partition cardiac data corresponding to a plurality of heart beats into a plurality of cardiac segments, wherein the partitioning is performed according to patient state information;
(ii) compute a segment score for each of the plurality of cardiac segments using at least one segment score rule, thereby generating a set of segment scores, wherein each segment score characterizes a feature of each of the cardiac segments;
(iii) apply at least one diagnostic rule to the set of segment scores to detect the occurrence of a cardiac abnormality. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device for tracking the cardiovascular condition of a human patient, the device including:
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an electrode adapted to sense the electrical signal from the patient'"'"'s heart, the electrical signal being a waveform which consists of a multiplicity of beats, a digital processor configured to compute from the waveform a plurality of values of a heart signal feature, the digital processor further configured to (i) partition cardiac data corresponding to a plurality of heart beats into a plurality of cardiac segments;
(ii) compute a segment score for each of the plurality of cardiac segments using at least one segment score rule, thereby generating a set of segment scores, wherein each segment score characterizes a feature of each of the cardiac segments, and wherein the segment score depends on patient state information;
(iii) apply at least one diagnostic rule to the set of segment scores to detect the occurrence of a cardiac abnormality. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A device for tracking the cardiovascular condition of a human patient, the device including:
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a sensor adapted to sense a signal from the patient'"'"'s heart, the signal being a waveform which consists of a multiplicity of beats, a digital processor configured to compute from the waveform a plurality of values of a heart signal feature, the digital processor further configured to (i) partition cardiac data corresponding to a plurality of heart beats into a plurality of cardiac segments;
(ii) compute a segment score for each of the plurality of cardiac segments using at least one segment score rule, thereby generating a set of segment scores, wherein each segment score characterizes a feature of each of the cardiac segments;
(iii) apply at least one diagnostic rule to the set of segment scores to generate a diagnostic score indicative of the patient'"'"'s cardiovascular condition, (iv) generate a patient state index parameter based at least in part on the diagnostic score; and
(v) use the patient state index parameter to modulate at least one of the actions specified in subparagraphs (i) through (iii) above. - View Dependent Claims (28)
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Specification