Method, system, medium and terminal for analyzing cardiac ventricular septal abnormality based on magnetocardiography

An analysis system and magnetocardiogram technology, applied in the field of data processing, can solve the problem of not considering the law of electrical activity, and achieve the effect of improving accuracy

Active Publication Date: 2022-04-12
漫迪医疗仪器(上海)有限公司
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Problems solved by technology

[0005] At present, researchers at home and abroad are focusing on deep mining and extraction of magnetocardiogram characteristic parameters to judge its sensitivity and reliability for the prediction of myocardial ischemia and other diseases, without considering its original electrical activity law

Method used

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  • Method, system, medium and terminal for analyzing cardiac ventricular septal abnormality based on magnetocardiography
  • Method, system, medium and terminal for analyzing cardiac ventricular septal abnormality based on magnetocardiography
  • Method, system, medium and terminal for analyzing cardiac ventricular septal abnormality based on magnetocardiography

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Experimental program
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Effect test

Embodiment 1

[0097] Such as Figure 8 as shown, Figure 8 It is the Q wave-R wave current angle change diagram of the magnetocardiogram of normal people. The abscissa is the number of frames. The Q wave-R wave interval is divided into 8 (y) frames on average for each frame interval of 5 (x) milliseconds to obtain the current Angle, the available current angle gradually decreases from 177 degrees counterclockwise to 52 degrees, and the characteristic parameter = the current angle of the previous frame - the current angle of the next frame ≥ 0 can be obtained by calculation, and the cardiac interventricular septum is judged to be normal according to the characteristic parameters.

Embodiment 2

[0099] Such as Figure 9 as shown, Figure 9 For clinical coronary angiography of patients with vascular stenosis, the magnetocardiogram Q wave-R wave current angle change map, the Q wave-R wave interval is divided into 6 (y) frames at an interval of 5 (x) milliseconds per frame, and the current angle is obtained , it can be obtained that the current angle gradually increases from 185 degrees to 358 degrees, and then gradually decreases to 31 degrees. Through calculation, the characteristic parameter = the current angle of the previous frame - the value of the current angle of the next frame is not all ≥ 0. According to the The above characteristic parameters are used to judge the abnormality of the cardiac interventricular septum.

Embodiment 3

[0101] Such as Figure 10 as shown, Figure 10 It is also the magnetocardiogram Q wave-R wave current angle change map of clinical coronary angiography patients with vascular stenosis. The Q wave-R wave interval is divided into 7 (y) frames on average for each frame interval of 5 (x) milliseconds to obtain the current angle , it can be obtained that the current angle gradually increases from 171 degrees to 357 degrees, then decreases to 2 degrees, and then gradually increases to 33 degrees, showing a clockwise deflection trajectory. By calculation, the characteristic parameter = current angle of the previous frame - the next frame The values ​​of the frame current angles are not all ≥ 0, and it is judged that the cardiac interventricular septum is abnormal according to the characteristic parameters.

[0102] In summary, the method, system, medium, and terminal for analyzing cardiac ventricular septal abnormalities based on magnetocardiography of the present invention extract ...

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Abstract

The present invention provides a magnetocardiogram-based analysis method, system, medium and terminal for cardiac interventricular septal abnormalities, comprising the following steps: preprocessing magnetocardiogram data sets collected by a multi-channel magnetocardiograph, and obtaining QRS wave bands Magnetocardiogram cycle data set; based on the QRS wave band magnetocardiogram cycle data set, the magnetic field intensity recorded by each magnetic channel of the multi-channel magnetocardiograph and the position information of the magnetic channel, obtain the magnetic field, etc. A magnetic map, and obtain a current density map based on the magnetic field and other magnetic maps; based on the current density map, extract characteristic parameters related to the cardiac interventricular septum; judge whether the cardiac interventricular septum is abnormal according to the characteristic parameters. The present invention analyzes the signal characteristics of the QRS wave in the magnetocardiogram, extracts the characteristic parameters related to the cardiac interventricular septum, and links it with the original cardiac electrical activity law, thereby realizing the function of judging whether the cardiac interventricular septum is abnormal, and improving the heart function. Accuracy of judgment of abnormality of interventricular septum.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a magnetocardiogram-based analysis method, system, medium and terminal for cardiac interventricular septal abnormality. Background technique [0002] There is a wealth of electromagnetic information hidden behind the life activities of the human body. Cardiac cardiomyocytes will generate a weak magnetic field with a strength of about 10-12 Tesla during the electrical activities of depolarization and repolarization. Magnetocardiography (MCG) is a new method for diagnosing heart diseases by detecting the spatial magnetic field generated by the electrical activity of the human heart for imaging analysis. As a new type of non-contact and non-invasive technology, magnetocardiography can generate Visual analysis and display of electromagnetic field changes can help doctors accurately and quickly diagnose heart disease. Clinical results show that magnetocardiography will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/243
CPCA61B5/7235A61B5/7203A61B5/7225A61B5/243
Inventor 王月霞倪煊中张树林曾曹宁
Owner 漫迪医疗仪器(上海)有限公司
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