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Location method for dynamic neuromagnetic source

A source localization and electroencephalography technology, which is applied in the field of biological information, can solve the problems of difficult localization of dynamic brain magnetic sources and difficult research on signal transmission of mutant brain magnetic sources, so as to achieve the effect of fast dynamic localization.

Active Publication Date: 2016-01-06
SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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Problems solved by technology

The invention solves the technical problem that the dynamic brain magnetic source is difficult to locate, especially solves the technical problem that it is difficult to study the signal transmission process of the mutation brain magnetic source

Method used

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  • Location method for dynamic neuromagnetic source
  • Location method for dynamic neuromagnetic source
  • Location method for dynamic neuromagnetic source

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Embodiment Construction

[0053] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0054] It should be understood that terms such as "having", "comprising" and "comprising" used herein do not denote the presence or addition of one or more other elements or combinations thereof.

[0055] The method for locating the intensity of magnetic brain source signals of the present invention is not used in the process of disease diagnosis.

[0056] like figure 1 As shown in -4, the present invention provides a dynamic encephalomagnetic source positioning method, which specifically includes the following steps:

[0057] Step 1) scan the head of the person to be tested by a nuclear magnetic resonance instrument to generate a brain MR structural image; collect the MEG signal through a magnetoencephalometer, which includes m magnetic signal acquisition sensors and a head...

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Abstract

The invention discloses a location method for a dynamic neuromagnetic source. The location method comprises following steps: collecting a brain MR structure image and a magnetoencephalography MEG signal B and setting measurement space; setting space where a source signal is formed in the cerebral cortex as source space; determining the space-shifting relation between measurement space and source space and further determining the relation between an MEG signal B and a source signal matrix X, constructing subspace for the time domain, projecting the MEG signal B and the source signal matrix X to the subspace for the time domain, solving in order to obtain a source signal X, and extracting position information of the source signal X and intensity information thereof so that a location process for the dynamic neuromagnetic source is finished. The location method for the dynamic neuromagnetic source has following beneficial effects: the technical problem that the dynamic neuromagnetic source is not easily positioned is solved; and especially the technical problem that a transmitting process for a mutant neuromagnetic source signal is not easily studied is also solved.

Description

technical field [0001] The invention relates to the technical field of biological information, in particular to a dynamic encephalomagnetic source positioning method. Background technique [0002] The normal operation of brain function is not completed independently by a single neuron or a single brain region, but depends on the neural functional connection network formed by the interaction of neurons. Neuroimaging techniques are widely used in the field of medical technology. Among the existing neuroimaging techniques, magnetic resonance imaging (MR) and computed tomography (CT) are unable to capture real-time abnormal neural connections due to their low time resolution, while brain functional imaging techniques represented by magnetoencephalography (MEG) Due to its high temporal resolution, it has become an important tool for medical and cognitive neuroscience research. Dynamic EEG source localization is a key technical issue of EEG functional imaging technology. [000...

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Application Information

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IPC IPC(8): A61B5/00G06T7/00
Inventor 刘婷戴亚康周志勇耿辰
Owner SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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