脑功能磁共振成像及其处理分析技术对神经科学研究的价值

发布时间：2018-05-03 22:24

本文选题：磁共振成像 + 图像处理　；参考：《中国临床康复》2005年29期

【摘要】：目的::对近年来脑功能磁共振成像及其处理和分析技术进行了讨论和综述,以阐明图像处理和分析技术在应用脑功能磁共振成像技术进行脑科学研究的重要作用。资料来源:应用计算机检索Medline1996-01/2004-12期间与脑功能磁共振成像及其处理和分析技术相关文章,检索词为“功能磁共振成像”和“processingandanalysis,ICA,FCM”,分别组合进行检索,限定文章语言为English。同时利用yahoo搜索引擎进行检索,检索词同上。资料选择:对资料进行初审,选取那些有关脑功能磁共振成像及其处理和分析方面的文献。资料提炼:共搜集到35篇英文全文,2篇中文,这些资料在对脑功能磁共振图像的处理和分析方面均具有较新的进展性。资料综合:由于功能磁共振成像在成像原理上有其特殊性,其目的是标记(或映射)对应于大脑在执行特殊任务或受到某种刺激时脑的激活区域。在功能磁共振图像中,功能活动信号表现为微弱信号,难以用肉眼区分出哪些是功能活动区域。因此对功能磁共振成像得到的图像数据的处理和分析的目的是从图像中提取出微弱的功能活动信号,这与一般意义上的图像处理和分析有所不同。将搜集到的35篇英文文献,2篇中文文献按照处理方法是否依赖于刺激时程,把图像处理方法分成假设驱动的方法和数据驱动的方法,并分析和讨论这些方法各自的特点。结论:图像处理分析技术在利用脑功能磁共振成像对神经科学的研究中具有重要的应用价值。图像处理和分析技术在功能磁共振成像实验中占有极其重要的地位,它对于最终脑功能的精确定位是必不可少的关键步骤。
[Abstract]:Objective: to discuss and summarize the techniques of functional magnetic resonance imaging (fMRI) and its processing and analysis in recent years in order to elucidate the important role of image processing and analysis in the research of brain science by using FMRI. Data sources: articles related to functional magnetic resonance imaging (fMRI) and its processing and analysis techniques during Medline1996-01/2004-12 were searched by computer with the keywords of "functional magnetic resonance imaging" and "processing and analysis ICAN FCM", respectively, and the language of the articles was limited to English. At the same time, yahoo search engine is used to search, the key word is the same as above. Data selection: the data were reviewed and the literatures on functional magnetic resonance imaging (fMRI) and its processing and analysis were selected. Data extraction: a total of 35 English full-texts were collected and 2 Chinese articles were collected. These data have new progress in the processing and analysis of brain functional magnetic resonance imaging (fMRI). Data synthesis: because functional magnetic resonance imaging has its particularity in imaging principle, its purpose is to mark (or map) the activation area of brain corresponding to the brain when performing special tasks or being stimulated by some kind of stimulation. In functional magnetic resonance imaging (fMRI), the signal of functional activity is weak, so it is difficult to distinguish the regions of functional activity with the naked eye. Therefore, the purpose of processing and analyzing the image data obtained by functional magnetic resonance imaging is to extract weak functional activity signal from the image, which is different from image processing and analysis in general sense. According to whether the processing method depends on the stimulus time course, the image processing methods are divided into hypothetically driven method and data-driven method, and the characteristics of these methods are analyzed and discussed. Conclusion: image processing and analysis technique has important application value in neuroscience research by using functional magnetic resonance imaging (fMRI). Image processing and analysis play an important role in functional magnetic resonance imaging (fMRI) experiments.
【作者单位】：上海理工大学医疗器械学院上海理工大学医疗器械学院上海理工大学医疗器械学院上海理工大学医疗器械学院
【分类号】：R445.2;

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