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Atrial fibrillation distinguishing method

A discriminant method, a technology of atrial fibrillation, applied in the field of data processing, can solve problems such as unfavorable real-time diagnosis and poor discrimination of atrial fibrillation

Active Publication Date: 2018-09-28
SOUTHEAST UNIV +1
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Problems solved by technology

[0003] Although the existing AF detection method based on the RR interval has a high degree of discrimination for sinus rhythm, due to individual differences and various diseases, the RR interval may be irregular to varying degrees, resulting in atrial fibrillation. Fibrillation is poorly differentiated in arrhythmia data
Existing methods mostly use statistical distribution and entropy information to measure irregularities, and the calculation of characteristics often requires long-range data from theory, which is not conducive to real-time diagnosis requirements

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0032] Such as figure 1 As shown, the present invention provides a method for atrial fibrillation discrimination, comprising the following steps:

[0033] Step 1. Locate the waveform feature points according to the original multi-lead ECG data, give the R wave position and the morphological classification of the QRS complex, judge the ventricular beat and supraventricular beat, and generate signs with ventricular beat and supraventricular beat The R wave position information data;

[0034] Step 2, generating the supraventricular RR interval for the R wave position information data mainly composed of supraventricular beats;

[0035] Step 3: Measure the geometric distribution characteristics of the Lorenz scatter diagram of the supraventricular RR interval, and generate three kinds of characteristic data: aggregation measurement index, diagonal are...

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Abstract

The invention discloses an atrial fibrillation distinguishing method. The atrial fibrillation distinguishing method comprises the following steps that original electrocardiogram data are subjected towave feature point positioning, the R-wave position and the morphological classification of a QRS composite wave are given, and RR interval information of continuous 50 or more supraventricular pulsation is distinguished; from the aspect of geometric distribution characteristics of a Lorentz scatter diagram, three characteristic data of aggregation measurement, diagonal area domination measurementand off-diagonal area linear dependence measurement are generated; and the characteristic data are synthesized, and whether atrial fibrillation occurs or not is judged according to a threshold valuemethod. According to the atrial fibrillation distinguishing method, atrial fibrillation distinguishing is conducted based on the geometric distribution characteristics of the Lorentz scatter diagram of the ventricular RR interval, and a doctor can be effectively assisted to distinguish.

Description

technical field [0001] The invention relates to a method for discriminating atrial fibrillation, in particular to an automatic identification method for atrial fibrillation in electrocardiogram (ECG) data for realizing whether atrial fibrillation occurs in electrocardiogram data, and belongs to the technical field of data processing. Background technique [0002] Because rapid atrial fibrillation can induce ventricular tachycardia and ventricular fibrillation, which can cause hemodynamic disturbance, and chronic atrial fibrillation can cause tachycardia, which can lead to heart organic disease, and complications such as thrombosis and other serious harmful consequences, it is necessary to treat atrial fibrillation non-invasively. Simple and easy judgment method. From the perspective of the generated physiological mechanism, the ECG signal of atrial fibrillation is a variable arrhythmia signal composed of continuous multiple sub-waves caused by one or more exciting waves alon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/046A61B5/361
CPCA61B5/361
Inventor 王丽艳董卓冉徐拥军
Owner SOUTHEAST UNIV
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