System for Cardiac Pathology Detection and Characterization
First Claim
1. A system for heart performance characterization and abnormality detection, comprising:
- an interface for receiving digitized electrical signals representing blood pressure waveforms over one or more heart beat cycles comprising,a first digital data sequence representing normal blood pressure of a patient,a second digital data sequence representing random blood pressure of a normal patient anda third digital data sequence representing a potentially abnormal blood pressure of a patient; and
a complexity processor for calculating first, second and third complexity indices for the corresponding first, second and third digital data sequences respectively; and
a correlation processor for using the calculated first, second and third complexity indices to calculate one or more measures indicating deviation of said potentially abnormal blood pressure of said patient from a normal value.
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Abstract
A system for heart performance characterization and abnormality detection includes an interface for receiving digitized electrical signals representing blood pressure waveforms over one or more heart beat cycles. The digitized electrical signals comprise, a first digital data sequence representing normal blood pressure of a patient, a second digital data sequence representing random blood pressure of a normal patient and a third digital data sequence representing a potentially abnormal blood pressure of a patient. A complexity processor calculates first, second and third complexity indices for the corresponding first, second and third digital data sequences respectively. A correlation processor uses the calculated first, second and third complexity indices to calculate one or more measures indicating deviation of the potentially abnormal blood pressure of the patient from a normal value.
38 Citations
17 Claims
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1. A system for heart performance characterization and abnormality detection, comprising:
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an interface for receiving digitized electrical signals representing blood pressure waveforms over one or more heart beat cycles comprising, a first digital data sequence representing normal blood pressure of a patient, a second digital data sequence representing random blood pressure of a normal patient and a third digital data sequence representing a potentially abnormal blood pressure of a patient; and a complexity processor for calculating first, second and third complexity indices for the corresponding first, second and third digital data sequences respectively; and a correlation processor for using the calculated first, second and third complexity indices to calculate one or more measures indicating deviation of said potentially abnormal blood pressure of said patient from a normal value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for heart performance characterization and abnormality detection, comprising the activities of:
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receiving digitized electrical signals representing blood pressure waveforms over one or more heart beat cycles comprising, a first digital data sequence representing normal heart blood pressure of a patient, a second digital data sequence representing random heart blood pressure of a normal patient and a third digital data sequence representing a potentially abnormal heart blood pressure of a patient; and calculating first, second and third complexity indices for the corresponding first, second and third digital data sequences respectively; and using the calculated first, second and third complexity indices to calculate one or more measures indicating deviation of said potentially abnormal heart blood pressure of said patient from a normal range.
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12. A system for heart performance characterization and abnormality detection, comprising:
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an interface for receiving a digitized electrical signal representing a blood pressure waveform over one or more heart beat cycles; a data processor for performing a Fourier transform on said digitized electrical signal to derive data representing individual frequency components of said digitized electrical signal; a calculation processor for determining measures comprising, (a) a first value representing a summation of the square of individual Fourier transform values of corresponding individual components of said individual frequency components and (b) a second value representing a square of the summation of individual Fourier transform values of corresponding individual components of said individual frequency components; and a correlation processor for using the calculated first and second values to calculate one or more measures indicating deviation of said potentially abnormal blood pressure of said patient from a normal value. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification