Brain imaging system and method based on electrical impedance imaging and electroencephalogram signals

Abstract

The invention discloses a brain imaging system and method based on electrical impedance imaging and electroencephalogram signals, comprising: an electroencephalogram measurement module for collecting electroencephalogram signals, and generating electroencephalogram time-domain waveforms according to the electroencephalogram signals , extracting EEG frequency domain features based on the EEG waveform, and comparing the EEG frequency domain features with a frequency domain preset threshold, if the EEG frequency domain features are greater than the frequency domain preset threshold , then send an opening instruction to the control circuit; the control circuit is used to receive the opening instruction, and apply a safe excitation current to the electrical impedance imaging module according to the opening instruction; the electrical impedance imaging module is used to collect the voltage variation and Impedance variation, and calculate an impedance distribution function based on the voltage variation and the impedance variation, generate a finite element segmentation image based on the impedance distribution function, and construct a three-dimensional brain image based on the finite element segmentation image. The system fuses electrical impedance imaging with EEG signals for brain imaging.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a brain imaging system and method based on electrical impedance imaging and electroencephalogram signals. Background technique [0002] The structure of the brain is intricate, containing hundreds of billions of neurons, and there are billions of connections between them. Today, the core functions of the brain, such as emotions and emotions, are still unsolved problems. The key to major diseases of the nervous system of human physical and mental health will also provide an important basis for the development of brain-inspired computing systems and devices, breaking through the shackles of traditional computer architectures, and determining the future direction of in-depth development of artificial intelligence. [0003] In recent years, brain imaging technology has made significant progress in the four aspects of imaging resolution, speed, depth and field of view. The new brain...

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Problems solved by technology

[0006] In view of the above problems, the purpose of the present invention is to solve the current existing brain imaging systems that mostly use electrical impedance imaging, but the image quality of the final brain imaging is low, and it is difficult to study the physiological structure and functional information of the brain. Realize the fusion of electrical impedance imaging and EEG signals for brain imaging, and then deeply mine the physiological information and functional information of the brain

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