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Magnetocardiograph, compensation optimization method, system and server based thereon

A technology of magnetocardiograph and optimization method, which is applied in the field of medical signal analysis, can solve the problems of unable to suppress the residual magnetic field, low output signal-to-noise ratio, and high distortion, and achieve high fidelity, high signal-to-noise ratio, and suppression of residual magnetic field Effect

Active Publication Date: 2019-04-19
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a magnetocardiograph, a compensation optimization method, system and server based on it, which are used to solve the problem that the 36-channel magnetocardiograph in the prior art cannot suppress shielding. The residual magnetic field in the room environment leads to the problem of outputting cardiomagnetic signals with low signal-to-noise ratio and high distortion

Method used

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  • Magnetocardiograph, compensation optimization method, system and server based thereon
  • Magnetocardiograph, compensation optimization method, system and server based thereon
  • Magnetocardiograph, compensation optimization method, system and server based thereon

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Embodiment 1

[0053] The present embodiment provides a magnetocardiograph, and the magnetocardiograph includes:

[0054] The compensation layer is arranged above the superconducting quantum interference device array layer of the magnetocardiograph;

[0055] At least one compensation magnetometer for compensating the magnetic field signal generated by the superconducting quantum interference device array layer is arranged on the compensation layer.

[0056] The magnetocardiograph provided by this embodiment will be described in detail below with reference to figures. see figure 1 , shown as a perspective view of a magnetocardiograph in an embodiment. Such as figure 1 As shown, the magnetocardiograph described in this embodiment is a 36-channel magnetocardiograph 1 . The 36-channel magnetocardiograph 1 includes a compensation layer 11 .

[0057] The compensation layer 11 is arranged above the superconducting quantum interference device array layer of the magnetocardiograph, specifically,...

Embodiment 2

[0060] This embodiment provides a compensation optimization method based on the magnetocardiograph described in Embodiment 1, wherein the compensation optimization method includes the following steps:

[0061] Using the first magnetic field signal generated by the compensation magnetometer on the compensation layer to compensate the second magnetic field signal generated by each magnetometer on the superconducting quantum interference device array layer through a preset compensation method, to form a compensated a third magnetic field signal;

[0062] Calculating evaluation parameters of the compensated third magnetic field signal, and comprehensively evaluating the third magnetic field signal according to the evaluation parameters, so as to optimize the compensation layer and form an optimal compensation channel thereon.

[0063] The compensation optimization method based on the magnetocardiograph described in Embodiment 1 described in this embodiment will be described below ...

Embodiment 3

[0098] This embodiment provides a compensation optimization system 2 based on magnetocardiograph, please refer to Figure 5 , which is a schematic structural diagram of a compensation optimization system based on a magnetocardiograph in an embodiment. Such as Figure 5 As shown, the magnetocardiograph-based compensation optimization system 2 includes: a compensation module 21 and an optimization module 22 .

[0099] The compensation module 21 is used to compensate the second magnetic field generated by each magnetometer on the superconducting quantum interference device array layer by using the first magnetic field signal generated by the compensation magnetometer on the compensation layer through a preset compensation method signal to form a compensated third magnetic field signal. In this embodiment, the preset compensation method in the compensation module 21 refers to:

[0100] The first magnetic field signal generated by the compensation magnetometer on the compensatio...

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Abstract

The invention provides a magnetocardiography, a compensation and optimization method based on the same, a system and a server. The compensation and optimization method comprises the following steps that second magnetic field signals produced by magnetometers on a super-conducing quantum interference device array layer are compensated by utilizing first magnetic field signals produced by compensation magnetometers on a compensation layer in a preset compensation mode to form third magnetic field signals after compensation; evaluation parameters of third magnetic field signals after compensation are calculated, the third magnetic field signals are evaluated according to comprehensive evaluations of evaluation parameters to optimize the compensation layer and determine the best compensation channel on the compensation layer. The residual magnetic field in a shielded room environment is effectively inhibited, so that 36 SQUID magnetocardiogram signals having high signal-to-noise ratio and high fidelity are output in a column mode.

Description

technical field [0001] The invention belongs to the field of medical signal analysis, and in particular relates to a magnetocardiograph, a compensation optimization method based on the same, a system and a server. Background technique [0002] Magnetocardiograph is a medical device that detects the weak magnetic field generated during the electrophysiological activity of the heart and is used in clinical medical diagnosis. It has special advantages such as high sensitivity, completely non-invasive, completely passive, and non-contact, and can accurately locate cardiac function. Abnormal, with good clinical diagnostic potential. [0003] The typical strength of the cardiomagnetic signal is tens of pT (10 -12 T), while the environmental field noise is very strong, such as the typical strength of the earth's magnetic field is 30 ~ 50μT, and the urban environmental noise has reached hundreds of nT. Extracting extremely weak cardiomagnetic signals from a strong background magne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/04A61B5/00
CPCA61B5/7203A61B5/7225A61B5/7235A61B5/7257A61B5/243
Inventor 孔祥燕杨康鲁丽陈威谢晓明
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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