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, and the system comprises: an electroencephalogram measurement module which is used for collecting the electroencephalogram signals, generating electroencephalogram time-domain waveforms according to the electroencephalogram signals, extracting electroencephalogram frequency-domain features based on the electroencephalogram waveforms, comparing the electroencephalogram frequency domain characteristics with a frequency domain preset threshold value, and if the electroencephalogram frequency domain characteristics are greater than the frequency domain preset threshold value, sending an opening instruction to the control circuit; the control circuit that is used forreceiving the starting instruction and applying safe excitation current to the electrical impedance imaging module according to the starting instruction; the electrical impedance imaging module thatis used for collecting voltage variation and impedance variation, calculating an impedance distribution function according to the voltage variation and the impedance variation, generating a finite element subdivision image based on the impedance distribution function, and constructing a brain three-dimensional image according to the finite element subdivision image. The system fuses electrical impedance imaging and electroencephalogram 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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