Brain structure imaging system and method based on MEG and EEG fusion

Abstract

The invention relates to a brain structure imaging system and method based on MEG and EEG fusion. The system mainly comprises a magnetic shielding room, a magnetoencephalogram measurement module, an electroencephalogram measurement module, a data synchronization and acquisition module and a structure imaging module. According to the brain structure imaging method based on MEG and EEG fusion, MEG (magnetoencephalogram) and EEG (electroencephalogram) of a person are collected at the same time; and the MEG is not affected by the conductivity of each tissue structure of the brain, and the EEG is affected by the conductivity of each tissue structure of the brain, so that according to the difference between the MEG and the EEG, a brain structure image related to the conductivity can be obtained.The method comprises the specific steps that according to the collected MEG, the condition of an activity source in the brain is obtained; according to the obtained brain source, potentials needing to be received by EEG electrodes are calculated; and the potentials are compared with actually-collected electrode values. By continuously modifying the structure size of each part in the brain, calculation is performed for multiple times until the difference reaches a set value. At the moment, the structure size of each part in the brain is a measured brain structure.

Description

technical field [0001] The invention relates to a brain structure imaging system and method in the field of structure imaging, in particular to a brain structure imaging system and method based on fusion of MEG and EEG. Background technique [0002] The study of human brain function and structure is a hot field of scientific research at present. The human brain contains a large number of nerve cells, and neural activities will generate electromagnetic fields. Existing electroencephalogram (EEG) and magnetoencephalogram (MEG) measurement equipment can detect the electromagnetic field information on the brain surface. MEG and EEG are non-invasive and fast-response. However, these two technologies are currently used for functional imaging and cannot reflect structural information. The existing traditional structural imaging is CT and magnetic resonance technology (MRI). CT radiation is relatively large, which is harmful to the human body. NMR technology requires an external ...

AI Technical Summary

Problems solved by technology

[0004] Problems to be solved by the technology of the present invention: to overcome the disadvantages that nuclear magnetic resonance technology cannot inspect subjects with metal in any part of the body and that CT technology is harmful to human body radiation, and provide a brain structure imaging system based on MEG and EEG fusion and Method, structural imaging can be performed for subjects with metal structures other than the head, and metal structures in other parts of the body have little effect on this method, which can satisfy the brain structure imaging of subjects with metal structures in the body (non-head containing metal) needs, and no radiation to the human body

Images