Method for processing electroencephalogram noise under nuclear magnetism

A technology of noise processing and EEG, applied in medical science, sensors, diagnostic recording/measurement, etc., to achieve the effect of real-time observation of experimental conditions

Inactive Publication Date: 2014-10-15
NEURACLE TECH CHANGZHOU CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the noise problem in the current EEG acquisition process under nuclear magnetic resonance, the present invention proposes a set of noise acquisition and processing schemes

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  • Method for processing electroencephalogram noise under nuclear magnetism
  • Method for processing electroencephalogram noise under nuclear magnetism
  • Method for processing electroencephalogram noise under nuclear magnetism

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Embodiment Construction

[0023] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0024] see Figure 1-3 As shown, the present invention provides a method for processing EEG noise under nuclear magnetic resonance: one end of the reference electrode is connected to the human brain through a conductive paste, the other end of the reference electrode is connected to one end of the first differential amplifier, and one end of the signal electrode is connected to the human brain through the conductive paste. The human brain is connected, and the other end of the signal electrode is connected to the other end of the first differential amplifier to collect and obtain EEG signals with interference signals;

[0025] One end of the anal...

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Abstract

The invention discloses a method for processing electroencephalogram noise under nuclear magnetism. One end of a reference electrode is connected with a human brain through conductive paste; the other end of the reference electrode is connected into one end of a first differential amplifier; one end of a signal electrode is connected with the human brain through conductive paste; the other end of the signal electrode is connected into the other end of the first differential amplifier; an electroencephalogram signal with an interference signal is obtained by the signal electrode through acquiring; one end of a simulation reference electrode is connected with a simulation impedor; the other end of the simulation reference electrode is connected to a second differential amplifier; one end of a simulation signal electrode is connected with the simulation impedor; the other end of the simulation signal electrode is connected to the second differential amplifier; the interference signal is obtained by the simulation reference electrode through acquiring; the reference electrode is electrically isolated from the simulation reference electrode; the signal electrode is electrically isolated from the simulation signal electrode. According to the method disclosed by the invention, a noise template can be accurately acquired in real time, and the problem that a noise model estimated by the traditional signal processing method is inaccurate is solved; the processed result can be outputted by a noise processing algorithm in real time, so that the real-time observation of experiment conditions is facilitated.

Description

technical field [0001] The invention relates to a method for processing noise, in particular to a method for processing brain electrical noise under nuclear magnetic resonance. Background technique [0002] With the development and maturity of MRI-compatible EEG acquisition technology, the method of synchronously recording EEG and functional MRI signals and performing joint analysis has been widely used in neuroscience research and clinical practice. Since the MRI strong magnetic field environment will bring strong electromagnetic interference to EEG signals, how to avoid the influence of these interferences on EEG signals is the biggest challenge faced by this technology. [0003] The noise introduced by the nuclear magnetic environment can be divided into two categories: gradient field noise and heart beat noise. Gradient field noise is the noise generated by gradient field changes on the EEG during the MRI scan process. Since the noise waveform does not change much betwe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
Inventor 胥红来黄肖山
Owner NEURACLE TECH CHANGZHOU CO LTD
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