System and method for signal quality indication and false alarm reduction in ECG monitoring systems
First Claim
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1. An electrocardiogram (ECG) monitoring system configured to:
- determine noise from a first ECG lead signal, wherein the determination of the noise comprises subtracting a signal template corresponding to a noise-free cardiac signal from the first ECG lead signal;
assign a signal quality indicator from a set of possible signal quality indicators to the first ECG lead signal based on the determined noise; and
communicate the assigned signal quality indicator to a user.
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Abstract
An electrocardiogram (ECG) monitoring system configured to determine an index that comprises a set of indicators, where each indicator is indicative of a level of signal quality in an ECG lead. Further, the ECG monitoring system assigns a first indicator from the set of indicators to a first ECG lead signal and communicates the first indicator to a user.
29 Citations
20 Claims
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1. An electrocardiogram (ECG) monitoring system configured to:
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determine noise from a first ECG lead signal, wherein the determination of the noise comprises subtracting a signal template corresponding to a noise-free cardiac signal from the first ECG lead signal; assign a signal quality indicator from a set of possible signal quality indicators to the first ECG lead signal based on the determined noise; and communicate the assigned signal quality indicator to a user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An electrocardiogram (ECG) monitoring system configured to:
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determine noise from a first ECG lead signal in two or more frequency segments, where the determination of the noise from the first ECG lead signal in at least one frequency segment comprises subtracting a noise-free signal template corresponding to a cardiac signal from the first ECG lead signal in the at least one frequency segment; assign a first indicator from a set of possible signal quality indicators to the first ECG lead signal, wherein the assignment of the first indicator is based on the determined noise from all frequency segments; and communicate the first indicator to a user. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification