Positioning analysis method for electrocardiogram and phonocardiogram based on cardiac sound characteristics

Abstract

Provided is a positioning analysis method for electrocardiogram and phonocardiogram based on cardiac sound characteristics. The method comprises following steps: synchronously acquiring and synchronously recording electrocardiogram and phonocardiogram, and using the same timeline for the electrocardiogram and phonocardiogram; identifying cardiac sound characteristics in the phonocardiogram, the cardiac sound characteristics comprising at least S1, S2 and a cardiac cycle, and marking the timeline with time tS1 of the S1, the time tS2 of the S2, and the cardiac cycle; for the electrocardiogram,carrying out following operations within each cardiac cycle: determining the period from S1 to S2 and searching for cardiac T waves in the period and determining the period from the S2 to the end moment of the cardiac cycle and searching the cardiac R waves and P waves within the period; if any of the T waves, the R waves and the P waves is missing, then outputting the cardiac abnormality alarm. The invention has the advantages of being able to initially identify the function of the heart by using the matching relationship between the electrocardiographic characteristics and the phonocardiogram characteristics, and is suitable for the advantages of home cardiac monitoring.

Description

technical field [0001] The invention relates to an analysis method of an electrocardiogram and a phonocardiogram. Background technique [0002] In the human heart, the sinoatrial node automatically and rhythmically generates current, and the current is transmitted to various parts of the heart in the order of conduction tissue, thereby causing the contraction and relaxation of cardiomyocytes. The excitement from the sinoatrial node is transmitted to the atria and ventricles in a certain way and process, causing the excitement of the whole heart. Therefore, the direction, route, sequence and time of the electrical changes occurring during the excitation of each part of the heart are regular. This bioelectrical change is reflected to the body surface through the conduction resistance value and body fluid around the heart, so that all parts of the body undergo regular electrical changes in each cardiac cycle. The electrical change curve of the heart recorded by placing the gu...

AI Technical Summary

Problems solved by technology

[0004] There have been many attempts at home and abroad on the joint monitoring of heart sounds and ECG, but the previous cardiac function detectors were limited to the traditional digitization of cardiac auscultation, and did not fully utilize the clinical application value of heart sounds, nor did they integrate heart sounds Correlation with ECG by physiological relationship for analysis of heart function

[0005] Moreover, the existing electrocardiogram and phonocardiogram still remain at the stage of manual reading, and the information of the electrocardiogram or phonocardiogram must be analyzed only by relying on the experience of doctors. Interpretation of the electrocardiogram to determine whether there is a heart disease or a hidden danger of the disease; it is not conducive to the self-monitoring of heart disease patients at home

[0006] The portable electrocardiograph that appears now can only monitor the ECG, but cannot monitor the heart sound, and the electrocardiometer only outputs the electrocardiogram, but does not send out whether the heart is abnormal. It still depends on professionals to interpret the electrocardiogram.

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