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Myocardial ischemia assessment method and device based on magnetocardiogram signal

A technology of myocardial ischemia and magnetic signal, applied in the field of data analysis, can solve the problems of the magnetic field map that doctors do not understand and cannot accurately interpret, and achieves the effect of automation and accuracy, simplification of the interpretation process, and optimization of the evaluation method.

Pending Publication Date: 2021-10-15
苏州卡迪默克医疗器械有限公司
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Problems solved by technology

[0004] However, although the magnetocardiograph can accurately record the magnetic signal of the heart, the diagnosis of the magnetocardiograph needs to rely on manual interpretation of the magnetic field map, but many doctors do not understand the magnetic field map, so they cannot accurately interpret it, and there are certain application blind spots

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  • Myocardial ischemia assessment method and device based on magnetocardiogram signal
  • Myocardial ischemia assessment method and device based on magnetocardiogram signal
  • Myocardial ischemia assessment method and device based on magnetocardiogram signal

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Embodiment

[0025] figure 1 A flow chart of a method for assessing myocardial ischemia based on a cardiac magnetic signal provided in an embodiment of the present invention, this embodiment can be applied to the situation of assessing myocardial ischemia, the method can be performed by a cardiac magnetic signal-based The myocardial ischemia assessment device can be implemented by means of software and / or hardware.

[0026] In order to introduce the subsequent embodiments of the present invention, the principle of the magnetic field generated by the heart is first introduced.

[0027] When the ventricle contracts, depolarization spreads through the heart, and the extracellular fluid around the heart muscle is more negatively charged, while the rest of the heart is positively charged. This creates a potential difference between the different regions, which the ECG electrodes can detect. A cardiac dipole is a vector that has both a direction (from the most negative region of the heart to t...

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Abstract

The invention discloses a myocardial ischemia assessment method and device based on a magnetocardiogram signal. The method comprises the following steps: acquiring a magnetic field map of a heart through a magnetocardiography; converting the magnetic field diagram into a corresponding current density vector diagram; analyzing the QRS depolarization stage and the STT repolarization stage of the current density vector diagram, and evaluating the myocardial ischemia condition according to the analysis result. According to the technical scheme, interpretation of the magnetocardiogram can be combined with electrophysiology well known by doctors by converting the magnetic field diagram into the current density vector diagram, the interpretation process is simplified, automated and accurate, and then the myocardial ischemia assessment method is optimized.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of data analysis, and in particular, to a method and device for assessing myocardial ischemia based on a cardiac magnetic signal. Background technique [0002] Coronary heart disease is a common cardiovascular disease, and its prevalence has been on the rise in recent years. Coronary heart disease is often accompanied by myocardial ischemia. The identification of myocardial ischemia in patients plays an important role in understanding the disease and formulating treatment plans. At present, ECG is often used to detect myocardial ischemia in patients, but the current ECG accuracy rate is generally only 30%-40%, and it is impossible to screen out "hidden heart disease patients". The magnetocardiogram can obtain rich information on the electromagnetic activity of the heart, and it can be found that patients with "normal ECG" heart disease. [0003] Magnetocardiograph is a simple, fast, a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/243G16H50/20
CPCA61B5/243A61B5/0033A61B5/7257G16H50/20
Inventor 许琳封燮黄燕飞刘素霞王睿奇汤苏晋
Owner 苏州卡迪默克医疗器械有限公司
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