Electrocardiograph-signal single-lead f-wave extraction method and device
An electrocardiographic signal and extraction method technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as low detection accuracy and sensitivity to changes in heart beat shape, achieve correction, good robustness, and improve correction ability Effect
Active Publication Date: 2019-07-30
GUANGDONG UNIV OF TECH
View PDF4 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the single-lead method is convenient for mobile ECG monitoring, it is sensitive to abnormal cardiac beats such as ventricular premature beats, and the detection accuracy is low.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0038] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0039] Next, a method for extracting an f-wave from a single lead of an ECG signal provided by an embodiment of the present invention will be described in detail. figure 1 A flow chart of a method fo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The embodiment of the invention discloses an electrocardiograph-signal single-lead f-wave extraction method and device. According to an R-peak position of a detected electrocardiograph signal, the electrocardiograph signal is cut into multiple individual initial heart beat signals; all the initial heart beat signals are subjected to Gaussian enhancement, and heart beat signals after Gaussian enhancement are obtained; K neighbor heart beats of each heart beat signal are determined with a neighbor algorithm based on the DTW distance. DTW residual vectors between all the heart beat signals and the K neighbor heart beats corresponding to the heart beat signals are calculated, and f-wave signals of all the heart beat signals are obtained according to the DTW residual vectors; all the f-wave signals are spliced to complete extraction of electrocardiograph-signal f waves. The K neighbor heart beats serve as a template for conducting DTW reconstruction on the corresponding heart beat signals,the obtained K residual vectors are averaged to obtain the f waves, correction of R-peak detection errors is achieved, influence of distortion QRS waves is reduced, the accuracy of f-wave extraction is improved, and a reliable basis is provided for atrial-fibrillation clinical diagnosis.
Description
technical field [0001] The invention relates to the technical field of electrocardiographic signals, in particular to a single-lead f-wave extraction method and device for electrocardiographic signals. Background technique [0002] Atrial fibrillation is a common heart rhythm disorder. The incidence of atrial fibrillation increases with age. Atrial fibrillation can cause stroke and heart failure, which poses a serious risk to public health. Among heart disease patients, those with atrial fibrillation were twice as likely to die. When atrial fibrillation occurs, the frequency of atrial excitation reaches 300 to 600 times per minute, and the P wave of normal ECG disappears, replaced by continuous, irregularly trembling f waves. The physical parameters of f wave, such as amplitude and frequency spectrum, are often used in the clinical diagnosis of atrial fibrillation, which is of great significance to the study of the mechanism of atrial fibrillation electrophysiological act...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): A61B5/0452A61B5/00
CPCA61B5/7225A61B5/7235A61B5/316A61B5/349
Inventor 吕俊罗捷何昭水谢胜利杨祖元
Owner GUANGDONG UNIV OF TECH