RR interval monitoring method and blood pressure cuff utilizing same
DCFirst Claim
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1. An Atrial Fibrillation (AF) analysis method comprising:
- obtaining an output that includes a heart beat;
deriving a heart beat interval;
analyzing a number (N) of heart beat intervals from the output; and
detecting a likelihood of AF by;
calculating a Turning Points Ratio (TPR) of the N heart beat intervals;
calculating a root mean square of successive (RMSSD) heart beat intervals; and
calculating Shannon Entropy (SE) of the N heart beat intervals.
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Abstract
Disclosed is an apparatus and method for ambulatory, real-time detection of Atrial Fibrillation (AF) providing an overall accuracy that refers to detection of AF, irrespective of the duration of AF and beat-to-beat classification.
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Citations
15 Claims
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1. An Atrial Fibrillation (AF) analysis method comprising:
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obtaining an output that includes a heart beat; deriving a heart beat interval; analyzing a number (N) of heart beat intervals from the output; and detecting a likelihood of AF by; calculating a Turning Points Ratio (TPR) of the N heart beat intervals; calculating a root mean square of successive (RMSSD) heart beat intervals; and calculating Shannon Entropy (SE) of the N heart beat intervals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for Atrial Fibrillation (AF) detection, the apparatus comprising:
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a sensor for obtaining an output that includes a heart beat; and a processor for deriving a heart beat interval from the output, and analyzing a number (N) of heart beat intervals from the output, wherein the processor is configured to detect a likelihood of AF by; calculating a Turning Points Ratio (TPR) of the N heart beat intervals, calculating a root mean square of successive (RMSSD) heart beat intervals, and calculating Shannon Entropy (SE) of the N heart beat intervals.
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Specification