Auxiliary positioning method, system and equipment for current source of magnetocardiography

Abstract

The invention provides an auxiliary positioning method, system and equipment for a current source of magnetocardiography. The auxiliary positioning method for the current source of magnetocardiography comprises steps as follows: multiple magnetic dipoles fixedly adsorbed on the thoracic cavity of a human body are driven by alternating current at different frequencies to generate space magnetic fields at different frequency points; space magnetic field signals of the thoracic cavity of the human body are detected; intensity information of the space magnetic fields at different frequency points is acquired; the intensity information of the space magnetic fields at different frequency points is subjected to second preset treatment, so that a space position corresponding to the largest magnetic field value in the space magnetic field at each frequency point is acquired; magnetocardiography signals of the human body are subjected to third preset treatment, and the space position corresponding to the maximum current intensity of the magnetocardiography signals is acquired; the space position corresponding to the largest magnetic field value and the space position corresponding to the maximum current intensity are combined for auxiliary positioning. Positioning information can be acquired through measurement, mark points vary from person to person and are free from influence of the figure structure of the human body, and the auxiliary positioning method, system and equipment have wide clinical applicability.

Description

technical field [0001] The invention belongs to the field of biomedical technology, and relates to a positioning method, system, and equipment, in particular to an auxiliary positioning method, system, and equipment for a magnetocardiogram current source. Background technique [0002] The electrophysiological activity of the human heart is accompanied by a wealth of electromagnetic information. Magnetocardiography is a new diagnostic method for cardiac function that is imaged by detecting the spatial magnetic field generated by the electrical activity of the human heart. High, early diagnosis and other advantages [PROCEEDINGSOFTHEIEEE, VOL.92, NO.10, 1534-1548]. [0003] In the detection of magnetocardiography, it is usually based on a detection array parallel to the plane of the human chest cavity to obtain the spatial magnetic field of the heart in a certain area. Based on the detected magnetic field, the most commonly used processing method is to perform isomagnetism ima...

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Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an auxiliary positioning method, system, and equipment for a magnetocardiogram current source, which is used to solve the problems in the prior art due to the electrical conductivity of the heart source and human tissue. Due to the unknownness of the experiment and the obvious differences among the human body types, the solution of the source localization is non-unique, and the results need to be further verified, which cannot be widely used clinically.

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