基于去趋势波动分析的全局性缺氧缺血脑损伤后脑电信号分析  

Analyzing the EEG Follouing Global Ischemic Brain Injury with Detrended Fluctuation Analysis.

作　　者：宋芳[1] 戴秋璐[1] 吴文庆[1] 邱意弘[1] 朱贻盛[1] 童善保[1] 

机构地区：[1]上海交通大学生物医学工程系,上海200240

出　　处：《航天医学与医学工程》2009年第2期112-115,共4页Space Medicine & Medical Engineering

基　　金：上海交通大学青年教师校内科研启动基金;全国优秀博士论文作者基金(200552)

摘　　要：目的分析去趋势波动分析算法(detrended fluctuation analysis,DFA)得到的标度指数值(scaling index)对神经活动健康情况的表征准确性。方法使用去趋势波动分析算法分析缺氧缺血状态下的脑电信号,把得到的标度指数值与组织切片实验结论相比较。结果标度指数值对脑损伤的反应情况,与组织切片实验结果吻合。结论DFA算法得到的标度指数值能够很好地表征神经生理活动。Objective To analyze the veracity of neuroactivities showed by scaling index got with detrended fluctuation analysis algorithm. Methods Extracting the scaling index of EEG energy variability by detrended fluctuation analysis （DFA） , and comparing the scaling index results with the known histological results. Results The ischemic brain injury presented with scaling index varied consistently with the known histological results. Conclusion It is showed that the scaling index presents good veracity to the neuroactivities.

关 键 词：缺氧缺血 脑损伤 脑电信号 长程相关 去趋势波动分析 

分 类 号：R852.11[医药卫生—航空、航天与航海医学]