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A Method of Brain Function Localization During Ecog Operation Based on Clustering and Classification Algorithms

A classification algorithm and positioning method technology, applied in medical science, diagnosis, diagnostic recording/measurement, etc., can solve the problems of low accuracy, no specificity of brain functional areas, and difficulty in finding out specificity, etc., to achieve fast and accurate positioning, Significance of significant clinical application, effect of improving accuracy

Active Publication Date: 2022-03-29
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

However, the low accuracy rate of allogeneic detection indicates that there is no common specificity in the brain functional areas of the population, or it is very difficult to find out the common specificity

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  • A Method of Brain Function Localization During Ecog Operation Based on Clustering and Classification Algorithms
  • A Method of Brain Function Localization During Ecog Operation Based on Clustering and Classification Algorithms
  • A Method of Brain Function Localization During Ecog Operation Based on Clustering and Classification Algorithms

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Embodiment

[0040] A brain function localization method in ECoG surgery based on clustering and classification algorithms, which can scientifically detect the specific EEG signals of functional areas and non-functional areas, and locate the functional areas of the cerebral cortex in real time during surgery With the location of the non-functional area, it helps the doctor to perform neurosurgery. The present invention will be further described below in conjunction with accompanying drawing and implementation. Such as figure 1 As shown, the specific processing is as follows:

[0041] 1. First, use the functional area boundary clustering algorithm to cluster the lead categories. The algorithm flow is as follows figure 2 As shown, the steps in the following order are included:

[0042] (1) Signal collection:

[0043] After craniotomy, platinum electrode arrays (subdural electrode arrays; Ad-Tech, Racine, WI, USA) were implanted into the patient's subdural area. The electrodes had a diam...

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Abstract

The invention discloses a brain function positioning method in ECoG surgery based on a clustering and classification algorithm, which includes the following steps: firstly, using a functional area boundary clustering algorithm, extracting the energy ratio of the six-layer wavelet decomposition and reconstruction single sub-frequency band as a feature quantity , and use the agglomerative hierarchical clustering model to cluster the clusters of each lead; secondly, use the functional area attribute classification algorithm, use the 6-dimensional time-domain statistics and the 5-dimensional rhythmic energy as the feature quantities, and use PCA to reduce the feature dimension , and use the functional area attributes of the SVM classification leads; finally, integrate the above algorithms to establish an integrated algorithm for ECoG intraoperative brain function localization, and use a custom similarity algorithm to match the clustered clusters to the functional area attributes to complete the functional area positioning . The algorithm model of the present invention has good generalization, can realize the clinical application of accurate and fast intraoperative brain function localization, and can be widely used in neuroscience research such as intraoperative brain function localization based on EEG analysis.

Description

technical field [0001] The invention relates to the research field of neuroscience research and clinical application of electroencephalogram analysis, in particular to a brain function localization method in ECoG operation based on clustering and classification algorithms. Background technique [0002] The brain is the center of the human nervous system. Brain lesions will affect human memory, language, movement and other functions, seriously affecting human survival and quality of life. Among them, epilepsy and glioma are the most common brain lesions one. At present, the main treatment for such brain lesions is neurosurgery, and the most important step in neurosurgery is intraoperative brain function localization. Traditional intraoperative brain function localization methods (anatomy, image, cortical electrical stimulation, etc.) have problems of speed, accuracy, and possible trauma. The intraoperative brain function localization method using cortical electroencephalogra...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/374A61B5/372
CPCA61B5/7264A61B5/4064
Inventor 姜涛许永川
Owner SOUTH CHINA UNIV OF TECH