Quantitative heart testing
First Claim
1. One or more non-transitory computer-readable media storing instructions for processing one or more electrocardiograms associated with one or more respective leads, the instructions, when executed by one or more computer processors, causing the one or more computer processors to perform operations comprising:
- converting the one or more electrocardiograms by time-frequency transform into one or more respective two-dimensional time-frequency maps;
identifying, within the one or more electrocardiograms, one or more points in time associated with a T wave;
determining, for at least one of the one or more time-frequency maps, one or more repolarization measures corresponding to extrema across frequency of the respective time-frequency map at the one or more points in time associated with the T wave; and
outputting at least one repolarization index based on the one or more repolarization measures.
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Accused Products
Abstract
Heart condition and function can be quantified using repolarization measures and/or repolarization indices derived from a time-frequency transform of an electrocardiogram, e.g., based on points in time associated with the T wave. The electrocardiograms, time-frequency maps derived therefrom, and/or indices obtained by analysis of the time-frequency maps and electrocardiograms may be assembled into a user interface. Further embodiments are described.
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Citations
28 Claims
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1. One or more non-transitory computer-readable media storing instructions for processing one or more electrocardiograms associated with one or more respective leads, the instructions, when executed by one or more computer processors, causing the one or more computer processors to perform operations comprising:
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converting the one or more electrocardiograms by time-frequency transform into one or more respective two-dimensional time-frequency maps; identifying, within the one or more electrocardiograms, one or more points in time associated with a T wave; determining, for at least one of the one or more time-frequency maps, one or more repolarization measures corresponding to extrema across frequency of the respective time-frequency map at the one or more points in time associated with the T wave; and outputting at least one repolarization index based on the one or more repolarization measures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification