| 基于小波变换和空间相关性fMRI数据 |
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| 引用本文： | 任宁宁,普杰信,刘森.基于小波变换和空间相关性fMRI数据[J].微电子学与计算机,2008,25(12). |
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| 作者姓名： | 任宁宁 普杰信 刘森 |
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| 作者单位： | 河南科技大学电子信息工程学院 |
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| 摘 要： | 提出了一种组合小波域统计分析和空间相关性检验的方法来检测fMRI功能激活区域.该方法首先利用Ruttimann等提出的小波方法检测到激活体素,然后逐体素分析它们与其三维空间26-邻域体素血流动力学响应的相关性,并进行空间相关性检验来得到最终激活区域.实验结果表明:该方法是一种快速可靠的fMRI功能激活区域检测方法.
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| 关 键 词： | 功能磁共振成像 小波变换 空间相关 |
Analyzing the fMRI Data Based on Wavelet Transform and Spatial Correlation |
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| REN Ning-ning,PU Jie-xin,LIU Sen.Analyzing the fMRI Data Based on Wavelet Transform and Spatial Correlation[J].Microelectronics & Computer,2008,25(12). |
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| Authors: | REN Ning-ning PU Jie-xin LIU Sen |
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| Abstract: | A method for identifying fMRI functional activation areas which combines statistical analysis in wavelet domain with testing spatial correlation is proposed. Firstly, the active voxels are tested by the wavelet method of Ruttimann, et al. Secondly, the method analyzes the correlation of hemodynamic responses between the tested active voxels and their 26-neighboring voxels. Finally, the activation areas are obtained by testing the spatial correlation. Experimental results prove that this method is fast and reliable to test the fMRI functional activation areas. |
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| Keywords: | functional magnetic resonance imaging wavelet transform spatial correlation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
