Magnetoencephalography data acquisition and analysis method and system

Abstract

The invention provides a magnetoencephalography data acquisition and analysis method and system, and relates to the technical field of medicine. The magnetoencephalography data acquisition and analysis method is applied to the magnetoencephalography data acquisition and analysis system based on an atom magnetometer, wherein the system comprises a stimulation generation device, a magnetoencephalography data acquisition device and a magnetoencephalography data analysis device; the magnetoencephalography data acquisition device is connected with the magnetoencephalography data analysis device; and the stimulation generation device and the magnetoencephalography data acquisition device both act on a subject. The method comprises the steps that the magnetoencephalography data acquisition device acquires magnetoencephalography data generated by the subject under stimulation of the stimulation generation device, and the magnetoencephalography data analysis device receives the magnetoencephalography data transmitted by the magnetoencephalography data acquisition device and analyzes the magnetoencephalography data to generate various brain magnetic analysis results. The complete magnetoencephalography analysis method and system can be provided for the atom magnetometer, and experiment and clinical analysis are facilitated.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a method and system for collecting and analyzing magnetic brain data. Background technique [0002] Magnetoencephalography (MEG) is a non-invasive neuroimaging technique that directly measures the magnetic field generated by the human brain. Based on MEG, a variety of brain function diseases can be diagnosed. [0003] In the existing technology, the magnetic brain strategy is carried out by using the superconducting quantum interferometer (SQUID) device, but the application of the SQUID device has certain limitations. Since the SQUID device needs to use liquid nitrogen to cool the superconducting sensor to 4K (-269°C) to work, its maintenance cost is relatively high. At the same time, the SQUID device needs to use a rigid Dewar to isolate the superconducting sensor from room temperature. Therefore, the requirement for effective thermal insulation between the superconducting sen...

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Problems solved by technology

[0003] In the existing technology, the magnetic brain strategy is carried out by using the superconducting quantum interferometer (SQUID) device, but the application of the SQUID device has certain limitations

Since the SQUID equipment needs to use liquid nitrogen to cool the superconducting sensor to 4K (-269°C) to work, its maintenance cost is high

At the same time, the SQUID device needs to use a rigid dewar to isolate the superconducting sensor from room temperature. Therefore, the requirement for effective thermal insulation between the superconducting sensor and the subject's head results in an increase in the distance between the neuron and the sensor, making the brain The signal-to-noise ratio of magnetic measurements is limited

[0004] In order to solve the problems existing in superconducting sensors, some existing technologies use SERF (Spin-ExchangeRelaxation-Free, no spin exchange relaxation) atomic magnetometer to conduct brain magnetism experiments, but the brain magnetism analysis for atomic magnetometers is still in the works. There is no complete system from stimulus generation to magnetic brain analysis, and it does not have general practicability in experiments and clinics

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