System for cardiac condition detection using heart waveform area associated analysis
First Claim
1. A system for heart performance characterization and abnormality detection, comprising:
- an interface for receiving waveform signal data representing electrical activity of a patient heart over at least one heart beat cycle;
a signal processor, employing a signal peak and amplitude detector andidentifying a first signal portion of a first heart cycle of said signal data,identifying a plurality of different amplitude ranges within said first signal portion,determining a first area under said waveform in said first signal portion and in only one of the plurality of different amplitude ranges, andderiving a parameter based on the determined first area; and
an output processor for generating an alert message if at least one of,(a) the derived parameter and(b) a difference between the derived parameter and a corresponding derived parameter for a different heart cycle for the patient, exceeds a predetermined threshold value.
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Abstract
A system for heart performance characterization uses an interface to receive waveform signal data representing electrical activity of a patient heart over at least one heart beat cycle. The signal processor uses a signal peak and amplitude detector for, identifying a first signal portion of a first heart cycle of the signal data, identifying multiple different amplitude levels within the first signal portion, determining a first area under the waveform in the first signal portion corresponding to at least one particular amplitude level and deriving a parameter in response to the determined first area. The output processor generates an alert message if at least one of, (a) the derived parameter and (b) a difference between the derived parameter and a corresponding derived parameter for a different heart cycle for the same patient, exceeds a predetermined threshold value.
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Citations
21 Claims
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1. A system for heart performance characterization and abnormality detection, comprising:
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an interface for receiving waveform signal data representing electrical activity of a patient heart over at least one heart beat cycle; a signal processor, employing a signal peak and amplitude detector and identifying a first signal portion of a first heart cycle of said signal data, identifying a plurality of different amplitude ranges within said first signal portion, determining a first area under said waveform in said first signal portion and in only one of the plurality of different amplitude ranges, and deriving a parameter based on the determined first area; and an output processor for generating an alert message if at least one of, (a) the derived parameter and (b) a difference between the derived parameter and a corresponding derived parameter for a different heart cycle for the patient, exceeds a predetermined threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for heart performance characterization and abnormality detection, comprising:
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an interface for receiving waveform signal data representing electrical activity of a patient heart over at least one heart beat cycle; a signal processor, employing a signal peak and amplitude detector, and identifying a first signal portion of a first heart cycle of said signal data, identifying a second signal portion of the first heart cycle of said signal data, identifying a plurality of different amplitude ranges within the first and second signal portions, determining a first area under said waveform in said first signal portion and in only one of the plurality of different amplitude ranges, determining a second area under said waveform in said second signal portion and in only the one of the plurality of different amplitude ranges, and deriving a parameter based on the determined first and second areas; and an output processor for generating an alert message if at least one of, (a) the derived parameter and (b) a difference between the derived parameter and a corresponding derived parameter for a different heart cycle for the patient, exceeds a predetermined threshold value. - View Dependent Claims (21)
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Specification