最重要的工具有:realign(头动校正)(和 unwarp 反卷积), slice timing correction(层间时间校正),cor 12、egister(配准), Normalize(标准化)和 smooth(平滑)。描述如下。头动校正头动校正是匹配图像的最基本功能。它采用刚体变换来处理扫描图像。即只允许转换(在 X, Y,Z 轴方向移动)和旋转(围绕 X,Y,Z)。
A more accurate estimate of a bias field can be obtained by including prior knowledge about the distribution of the fields likely to be encountered by the correction algorithm. For example, if it is known that there is little or no intensity non-uniformity, then it would be wise to penalise...
These packages usually contain a set of skull stripping, intensity non-uniformity (bias) correction and segmentation routines. Thus, assessment of the quality of the segmented gray matter (GM), white matter (WM) and cerebrospinal fluid (CSF) is needed for the neuroimaging applications. Methods: ...
0.05,tubeformulacorrection) 37 Fig.14.„fMRIResultsViewer‟windowand„NIRSResultsviewer‟window.Left: ActivationmapofBOLD(p0.05,randomfieldcorrection),Right:activationmapof HbO(p0.05,tubeformulacorrection),redline:edgeofBOLDactivation. 38 TimeSeriesAnalysis Inthe„TimeSeriesAnalysis‟routine,seve...
LS/MS analysis identified 53 (49 decreased, 4 increased) lipids that changed significantly (Fold Change = 2; p = 0.05, with FDR correction) upon DENSPM treatment in hPheo1 cells (Figure 6A). Almost half of these significantly changed lipids belonged to the class of ether plasmanyl lipids ...