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Detection method and device for atrial fibrillation

A detection method and technology for atrial fibrillation, which are applied in the directions of diagnostic recording/measurement, medical science, and diagnostic signal processing, etc., can solve the problems of obvious contradiction between accuracy and computational complexity, less involved in accurate positioning of atrial fibrillation boundaries, etc. The effect of pinpointing the boundaries of atrial fibrillation

Inactive Publication Date: 2015-02-25
北京海思敏医疗技术有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above-mentioned existing methods have the following problems: the contradiction between accuracy and computational complexity is obvious; the accurate positioning of the boundary of atrial fibrillation is rarely involved

Method used

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  • Detection method and device for atrial fibrillation
  • Detection method and device for atrial fibrillation
  • Detection method and device for atrial fibrillation

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Embodiment 1

[0025] Fig. 1 is a method flow chart of an embodiment of an atrial fibrillation detection method provided by the present invention, and the execution body of the method may be a detection device integrating digital signal acquisition and processing functions. As shown in Figure 1, the atrial fibrillation detection method specifically includes:

[0026] S101. Obtain each R-R interval in each signal unit in the ECG signal of the electrocardiogram to be detected;

[0027] In this embodiment, the electrocardiogram ECG signal to be detected is divided into a plurality of signal units of fixed time length according to the continuity of time, and each R-R interval contained in each signal unit is measured and obtained; wherein, the R-R interval is ECG The temporal distance between R waves in two adjacent heart beats in the signal.

[0028] S102, according to the heart rate variation characteristics reflected by the R-R interval in each signal unit, determine whether each signal unit...

Embodiment 2

[0065] figure 2 A structural schematic diagram of an embodiment of an atrial fibrillation detection device provided by the present invention, the device shown in the structural schematic diagram can execute the method steps of the embodiment shown in FIG. 1 . like figure 2 As shown, the atrial fibrillation detection device specifically includes: an acquisition module 21, a judgment module 22, an analysis module 23, an extraction module 24 and a determination module 25; wherein:

[0066] An acquisition module 21, configured to acquire each R-R interval in each signal unit in the electrocardiogram ECG signal to be detected;

[0067] The determination module 22 is used to determine whether each signal unit is a suspected atrial fibrillation segment according to the heart rate variation characteristics reflected by the R-R interval in each signal unit;

[0068] The analysis module 23 is used to analyze and process each R-R interval in the signal unit through a preset algorithm...

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Abstract

The embodiment of the invention provides a detection method and device for atrial fibrillation. The method includes the steps that all R-R intervals in all signal units in an ECG signal to be detected are obtained; according to heart rate variation features reflected by the R-R intervals in all the signal units, whether all the signal units are at a suspected atrial fibrillation stage or not is judged; for the signal unit which is already determined to be at the suspected atrial fibrillation stage, all the R-R intervals in the signal unit are analyzed and processed through a presetting algorithm so that whether atrial fibrillation happens in the signal unit or not can be determined; for the boundary between the signal unit where atrial fibrillation is determined to happen and the signal unit where atrial fibrillation is determined not to happen in the ECG signal to be detected, all the R-R intervals in a signal section containing the boundary are extracted; according to the heart rate variation features reflected by all the R-R intervals in the signal section, the ECG signal to be detected is determined to be located on the atrial fibrillation boundary in the signal section. According to the technical scheme, the atrial fibrillation position of the ECG signal is detected, the detection process is simple, and the atrial fibrillation boundary can be accurately positioned.

Description

technical field [0001] The invention relates to the technical field of electrocardiogram (Electrocardiogram, ECG) signal analysis, in particular to a method and device for detecting atrial fibrillation. Background technique [0002] Atrial fibrillation, referred to as atrial fibrillation, is the most common persistent cardiac arrhythmia. The total incidence of atrial fibrillation is 0.4%. The incidence of atrial fibrillation continues to increase with age, and it can reach 10% for people over 75 years old. Atrial fibrillation is generally not directly life-threatening, but when atrial fibrillation occurs, the synchronous mechanical activity of the heart is lost, the ventricular response is irregular, and the heart rate is too fast. If it is not diagnosed and treated in time, it will lead to various cardiovascular diseases with a high risk of death. [0003] In the prior art, the location of atrial fibrillation is usually determined by detecting the absolute irregularity of t...

Claims

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Application Information

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IPC IPC(8): A61B5/046A61B5/361
CPCA61B5/72A61B5/316A61B5/361
Inventor 侯桂文
Owner 北京海思敏医疗技术有限公司
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