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Intraoperative motor area function localization system based on multi-mode electroencephalogram wavelet analysis

A wavelet analysis and positioning system technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problem of no functional positioning system for intraoperative motor area in neurosurgery, achieve fast detection speed, reduce false detection and leakage detection, the effect of high spatial and frequency resolution

Inactive Publication Date: 2012-06-27
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0011] At present, there is no report of a motor area function positioning system in neurosurgery based on multi-mode EEG wavelet analysis at home and abroad; at the same time, there is no clinically applied neurosurgery system based on multi-mode EEG wavelet analysis. Middle motor zone function positioning system

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  • Intraoperative motor area function localization system based on multi-mode electroencephalogram wavelet analysis
  • Intraoperative motor area function localization system based on multi-mode electroencephalogram wavelet analysis
  • Intraoperative motor area function localization system based on multi-mode electroencephalogram wavelet analysis

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the implementation of the present invention is not limited thereto.

[0038] An intraoperative motor area function localization system based on multi-mode EEG wavelet analysis, such as figure 1 As shown, it includes three parts: EEG signal acquisition module, signal processing module, and functional area positioning map output module. The signal processing module includes EEG signal preprocessing unit, mu rhythm feature extraction unit, mu rhythm pattern classification unit, and SCP signal feature Extraction unit and SCP signal pattern classification unit. The composition of the EEG signal acquisition module is as follows: figure 2 As shown, including implanted electrodes, amplification filter and A / D converter. The system collects ECoG cortical EEG signals through the subdural electrode array of implanted electrodes, amplifies and filters them thr...

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Abstract

The invention discloses an intraoperative motor area function localization system based on multi-mode electroencephalogram wavelet analysis, which collects cortex electroencephalogram signals by embedding an electrode array. The cortex electroencephalogram signals are treated by an amplification filter and output into an electroencephalogram signal pretreatment unit through an analog to digital (A / D) converter to perform resolving and reconfiguration of the wavelet analysis. Data collected by all electrodes are previously treated and filtered, the filter signals respectively pass through a mu rhythm feature extraction unit, a mu rhythm and short circuit protection (SCP) signal feature extraction unit and an SCP signal patter classification unit to be feature extracted and classified, and the filtered signals are classified in double-mode combination mode by a combination classification unit to recognize special properties of all electrodes to finally process and output motor area localization images. The intraoperative motor area function localization system based on multi-mode electroencephalogram wavelet analysis can accurately and quickly detect motor area electroencephalogram signals and output brain motor area function localization images without wound. Through specificity analysis on brain motor area cortex electroencephalogram signals, clinical application of function localization in brain cortex motor area operation of human neurosurgery is achieved.

Description

technical field [0001] The invention relates to the field of medical electronic equipment, in particular to an intraoperative motor zone function positioning system based on multi-mode electroencephalogram wavelet analysis. Background technique [0002] Lesions in functional areas of the brain mainly refer to tumors, vascular malformations, and epileptic foci located in the motor, sensory, and language areas. The incidence rate of the large-scale investigation report organized by the World Health Organization in my country alone is 8‰ of epilepsy. , there are more than 10 million epilepsy patients in my country, of which drug-refractory epilepsy accounts for about 30% of epilepsy patients. At present, 3 million intractable epilepsy patients in my country need surgical treatment, which does not include low-level epilepsy located in the functional area. Glioma, metastatic tumor, primary benign tumor, cavernous hemangioma and arteriovenous malformation, etc. Lesions in functiona...

Claims

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Application Information

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IPC IPC(8): A61B5/0476A61B5/0478
Inventor 姜涛吴效明白红民王伟民
Owner SOUTH CHINA UNIV OF TECH
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