Method and apparatus for the serial comparison of electrocardiograms
First Claim
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1. An acquisition device for acquiring electrocardiograms from a patient, the device comprising:
- an acquisition module for acquiring a plurality of electrocardiograms from the patient; and
a signal processor coupled to the acquisition module for performing a serial comparison between at least two of the plurality of electrocardiograms, the plurality of electrocardiograms including an index electrocardiogram and at least one subsequent electrocardiogram, and the signal processor performing a serial comparison between the index electrocardiogram and the at least one subsequent electrocardiogram.
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Abstract
A method and apparatus for performing serial comparison between electrocardiograms (ECGs) acquired from a patient. The method includes acquiring ECGs from a patient with an acquisition device and using the acquisition device to perform a serial comparison between at least two of the acquired ECGs. The apparatus is an acquisition device including an acquisition module for acquiring ECGs from a patient and a signal processor for performing a serial comparison between at least two of the acquired ECGs.
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Citations
50 Claims
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1. An acquisition device for acquiring electrocardiograms from a patient, the device comprising:
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an acquisition module for acquiring a plurality of electrocardiograms from the patient; and
a signal processor coupled to the acquisition module for performing a serial comparison between at least two of the plurality of electrocardiograms, the plurality of electrocardiograms including an index electrocardiogram and at least one subsequent electrocardiogram, and the signal processor performing a serial comparison between the index electrocardiogram and the at least one subsequent electrocardiogram. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of performing serial comparison between electrocardiograms acquired from a patient, the method comprising the acts of:
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acquiring a plurality of electrocardiograms from the patient with an acquisition device, including acquiring an index electrocardiogram and at least one subsequent electrocardiogram; and
using the acquisition device to perform a serial comparison between at least two of the plurality of electrocardiograms, including performing a serial comparison between the index electrocardiogram and the at least one subsequent electrocardiogram. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method of performing serial comparison between electrocardiograms acquired from a patient, the method comprising the acts of:
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acquiring an index electrocardiogram and at least one subsequent electrocardiogram from the patient;
identifying changes between the index electrocardiogram and the at least one subsequent electrocardiogram in at least one of QRS complex, ST elevation, ST depression, and T wave;
assigning severity values to the identified changes, and analyzing the severity values according to a fuzzy logic algorithm;
indicating an acute myocardial infarction to a clinician if the severity value of the changes in the QRS complex is high, if the severity value of the changes in the ST elevation is high, if the severity value of the changes in the ST elevation and the ST depression are equal to or greater than moderate, or if the severity value of the changes in the T wave is equal to or greater than moderate; and
indicating acute ischemia to a clinician if the severity value of the changes in the ST depression is high or if the severity level of the changes in the ST depression and the T wave are equal to or greater than moderate. - View Dependent Claims (38, 39, 40, 41, 42)
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43. A software program for implementation in an electrocardiogram acquisition device and for performing a serial comparison between at least two electrocardiograms acquired from a patient, the software program comprising:
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a management module for analyzing corresponding leads of the at least two electrocardiograms, for determining which corresponding leads indicate differences between the at least two electrocardiograms, for sorting the corresponding leads into a plurality of groups according to the indicated differences, and for assigning a severity value to each one of the plurality of groups; and
a decision logic module for implementing a fuzzy logic algorithm to analyze the severity value assigned to each one of the plurality of groups and for outputting an indication of an acute coronary syndrome based on the analysis. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50)
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Specification