Method and apparatus for detecting, and analysing heart rate variation predication degree index

A technology of heart rate variability and analysis method, which is applied in the detection and analysis of heart rate variability prediction index and the field of instruments, which can solve problems such as roughness, obstacles to the clinical application and promotion of heart rate variability index, and mathematical models that do not conform to the heart rate control system.

Inactive Publication Date: 2005-01-05
阮炯 +3
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Problems solved by technology

For the further clinical application of the current time-domain and frequency-domain linear methods, the main crux is that it is difficult to accurately characterize and analyze heart rate changes-this is affected by hemodynamics, electrophysiology and hormone changes, autonomic nervous system and central nervous system. very complex process of factors affecting
Therefore, the current linear method is too rough and sensitive to external noise interference, and its mathematical model does not conform to the basic fact that the

Method used

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  • Method and apparatus for detecting, and analysing heart rate variation predication degree index
  • Method and apparatus for detecting, and analysing heart rate variation predication degree index
  • Method and apparatus for detecting, and analysing heart rate variation predication degree index

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Embodiment Construction

[0048] The following gives some samples about the non-linear predictive index SC Ni (i=24, ..., 28) and the connection curve (seeing the connection curve of the sixteen-step prediction degree CCi-j (j=1, 2, ..., 16) of a certain sample in a certain hour figure 1 ).

[0049] 0-Normal samples, 1-Patient samples

[0050] In this calculation process, the following functions and parameters are specifically taken:

[0051] f ( x ) = 1 1 + e - θx , θ = 0.25 ,

[0052] K=24, h=3, n is the number of sample RR intervals obtained per hour (different due to samples and time changes), m=20, N=16.

[0053] Sample hospital number Health status 24:00 25:00 26:00 27:00 28:00 24 hours

[0054] 3724 1 0.005426 -0.0...

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Abstract

A method and instrument for detecting and analyzing the predication degree index of cardiacrhythm variability features that the predication degree is used as the index of detecting and analyzing cardiac rhythm variability. Said method includes such steps as using dynamic electrocardiograph to record cardioelectric signals, automatically recognizing dynamic cardioelectric RR gap, forming time sequence RRi, and calculating non-linear predication degree PI.

Description

technical field [0001] The invention relates to a detection and analysis method and a measuring instrument for the heart rate variability prediction index of a dynamic electrocardiogram. Background technique [0002] The clinical index of heart rate variability is a quantitative and reproducible index. It is not only a quantitative index for the degree of sinus arrhythmia, but also an important quantitative index for evaluating autonomic nerve regulation function. The correct measurement of various indicators of heart rate variability has guiding significance for both physiological and pathological research, as well as clinical diagnosis and prevention. In particular, it has important clinical application value for analyzing and observing the regulatory function of sympathetic nerve and vagus nerve, defining the risk factors for the prognosis of patients with myocardial infarction, and diagnosing diabetes, paroxysmal arrhythmia, hypertension, and sleep apnea syndrome. . ...

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Application Information

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IPC IPC(8): A61B5/0402G06F17/00
Inventor 阮炯蔡志杰顾凡及林伟
Owner 阮炯
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