Assessing cardiac electrical stability
First Claim
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1. A method of permitting assessment of cardiac electrical stability, comprising:
- generating an alternans measure using a physiologic signal representative of activity of a patient'"'"'s heart;
generating a reference signal that provides information as to whether the alternans measure is representative of cardiac electrical stability; and
visually presenting the alternans measure and the reference signal in a way that permits visual evaluation of whether the alternans measure is representative of cardiac electrical stability in view of characteristics of the reference signal.
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Abstract
Cardiac electrical stability is assessed by generating a measure of cardiac electrical stability (e.g., an alternans measure) using a physiologic signal representative of activity of a patient'"'"'s heart, generating a reference signal that provides information regarding whether the measure is representative of cardiac electrical stability, and visually presenting the measure and the reference signal in a way that permits visual evaluation of whether the measure is representative of cardiac electrical stability in view of characteristics of the reference signal.
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Citations
31 Claims
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1. A method of permitting assessment of cardiac electrical stability, comprising:
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generating an alternans measure using a physiologic signal representative of activity of a patient'"'"'s heart; generating a reference signal that provides information as to whether the alternans measure is representative of cardiac electrical stability; and visually presenting the alternans measure and the reference signal in a way that permits visual evaluation of whether the alternans measure is representative of cardiac electrical stability in view of characteristics of the reference signal. - 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)
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26. A method of permitting assessment of cardiac electrical stability, comprising:
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sensing an ECG signal representative of activity of a patient'"'"'s heart; processing the ECG signal to generate a measure of cardiac electrical stability; generating a reference signal that provides information as to whether the measure is representative of cardiac electrical stability; and visually presenting the measure and the reference signal at common times in a way that permits visual evaluation of whether the measure is representative of cardiac electrical stability in view of characteristics of the reference signal. - View Dependent Claims (27, 28, 29)
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30. A system for permitting assessment of cardiac electrical stability, comprising:
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means for generating an alternans measure using a physiologic signal representative of activity of a patient'"'"'s heart; means for generating a reference signal that provides information as to whether the alternans measure is representative of cardiac electrical stability; and means for visually presenting the alternans measure and the reference signal in a way that permits visual evaluation of whether the alternans measure is representative of cardiac electrical stability in view of characteristics of the reference signal.
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31. Computer software, residing on a computer-readable storage medium, for use in a computer system for permitting assessment of cardiac electrical stability, the software comprising instructions for causing the computer system to:
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generate an alternans measure using a physiologic signal representative of activity of a patient'"'"'s heart; generate a reference signal that provides information as to whether the alternans measure is representative of cardiac electrical stability; and visually present the alternans measure and the reference signal in a way that permits visual evaluation of whether the alternans measure is representative of cardiac electrical stability in view of characteristics of the reference signal.
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Specification