A detection method for the width of the electrocardiographic qrs wave group and an electrocardiographic analysis method thereof
A technology of QRS complex and detection method, applied in the directions of diagnostic recording/measurement, medical science, diagnosis, etc., can solve the problems of misleading ECG analysis, false detection and missed detection, and deterioration of the accuracy of ECG automatic analysis and judgment.
Active Publication Date: 2020-12-15
NANJING UNIV +2
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Problems solved by technology
[0002] When measuring ECG in the field of ECG detection, the quality of ECG signal is the prerequisite for effective analysis of ECG. ECG signal with poor signal quality will mislead ECG analysis, especially in single-lead portable ECG acquisition. Prominent, because the single-lead portable ECG acquisition has sudden waveform jitter, motion artifacts, and easy introduction of noise such as large power frequency interference
[0003] In order to realize the correct analysis and diagnosis of ECG, the quality of ECG waveform must be good. Excessive noise and large jitter will lead to the deterioration of the accuracy of ECG automatic analysis and judgment, and the occurrence of false detection and missed detection.
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[0157] like Figure 14 , The present invention is an analytical method for detection of the width of the group of ECG based QRS wave, comprising the steps of:
[0158] S1, acquired 10 seconds of electrocardiographic waveform to be analyzed;
[0159] S2, treat quality classification based on ECG analysis ECG quality assessments, ECG quality levels obtained 10 seconds, its center of mass assessment of electrical waveforms in units of 1s, a total of 10 to obtain data representing the first second the quality level of coefficient of 10 seconds;
[0160] like Figure 12 , The ECG mass estimation method comprising the steps of:
[0161] S201, obtaining the electrocardiographic waveform of the original sampling rate fs and magnitude data, and the electrocardiographic waveform magnitude data into time units of 10 seconds of X-processing stage;
[0162] S202, the processing in the section X, the ECG signal segment is divided in units of 1 second divided segment x i , Where i = 1 ... 10, x i ...
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The invention discloses a method for detecting the width of an electrocardiographic QRS wave group, which includes using the extreme value method to find the peak and valley in the QRS wave, and then through the found extreme point and its combined slope, the triangle method, and the potential value of the equipotential segment , amplitude information to determine the start and end points of the QRS complex, and the period of the start and end point of the QRS complex is the width of the QRS complex. Accurate detection of the width of the QRS complex in the electrocardiogram is of great significance for the examination of cardiac function and the diagnosis and prevention of cardiovascular diseases.
Description
Technical field [0001] The present invention relates to an identification of QRS wave group in an electrocardiogram, and more particularly to a method of detecting a width of an electrocardiogram and an electrocardiogram method. Background technique [0002] When the electrocardiogram is measured in the field of electrocardiography, the quality of the electrocardiogram is the premise of ECG effective analysis. The electrocardiographic signal of the signal quality will be misleaded to the ECG analysis, especially in single-leading portable electrocardiography. Highlight, because single-line portable electrocardiography has sudden waveform jitter, motion pseudo waves, and can easily introduce noise such as larger power frequency interference. [0003] In order to achieve the correct analysis of the electrocardiography, the quality of the cardi-waveform must be good, too much noise and the large shake will result in the accuracy of the ECG automatic analysis and determination, and t...
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IPC IPC(8): A61B5/0472A61B5/04A61B5/366
CPCA61B5/316A61B5/366
Inventor 宁新宝马小飞周作建姜晓东
Owner NANJING UNIV