Method and apparatus for detecting cardiac repolarization abnormality
First Claim
1. A method of detecting cardiac repolarization abnormality using at least one electrocardiogram signal, the method comprising:
- deriving a total quantity of representative beats of the at least one electrocardiogram signal taken from a patient ECG;
using at least one morphology shape descriptor to determine a total quantity of values representing the total quantity of representative beats;
generating a template using at least one value corresponding to at least one of the representative beats;
comparing the template and at least one value corresponding to at least one other of the representative beats for a variation;
comparing the variation to a threshold value, wherein the threshold value is derived from trending, further wherein trending includes a time serial analysis; and
using data corresponding to at least some of the total quantity of values to assess cardiac repolarization abnormality in the patient.
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Abstract
Method and apparatus for detecting cardiac repolarization abnormality using at least one electrocardiogram signal. The at least one electrocardiogram signal can be obtained from any number of continuous or non-continuous windows. The method can include deriving a total quantity of representative beats of the at least one electrocardiogram signal. At least one morphology shape descriptor can be used to determine a total quantity of values representing the total quantity of representative beats. Data corresponding to at least some of the total quantity of values can be used to assess cardiac repolarization abnormality.
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Citations
19 Claims
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1. A method of detecting cardiac repolarization abnormality using at least one electrocardiogram signal, the method comprising:
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deriving a total quantity of representative beats of the at least one electrocardiogram signal taken from a patient ECG; using at least one morphology shape descriptor to determine a total quantity of values representing the total quantity of representative beats; generating a template using at least one value corresponding to at least one of the representative beats; comparing the template and at least one value corresponding to at least one other of the representative beats for a variation; comparing the variation to a threshold value, wherein the threshold value is derived from trending, further wherein trending includes a time serial analysis; and using data corresponding to at least some of the total quantity of values to assess cardiac repolarization abnormality in the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of detecting cardiac repolarization abnormality using at least one electrocardiogram signal, the method comprising:
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deriving a total quantity of representative beats of the at least one electrocardiogram signal taken from a patient ECG; using at least one morphology shape descriptor to determine a total quantity of values representing the total quantity of representative beats; generating a template using at least one value corresponding to at least one of the representative beats; comparing the template and at least one value corresponding to at least one other of the representative beats for a variation; and comparing the variation to a threshold value, wherein the threshold value is derived from trending, further wherein trending includes a time serial analysis. - View Dependent Claims (16, 17, 18)
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19. A device for detecting cardiac repolarization abnormality using at least one electrocardiogram signal, the device comprising:
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means for generating a total quantity of representative beats of the at least one electrocardiogram signal taken from a patient ECG; means for using at least one morphology shape descriptor to determine a total quantity of values representing the total quantity of representative beats means for; generating a template using at least one value corresponding to at least one of the representative beats means for; comparing the template and at least one value corresponding to at least one other of the representative beats for a variation means for; comparing the variation to a threshold value, wherein the threshold value is derived from trending, further wherein trending includes a time serial analysis; and means for using data corresponding to at least some of the total quantity of values to assess cardiac repolarization abnormality in the patient.
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Specification