功能连接 ROI选择的问题

Submitted by yanzhou on

  老师您好,请教一个问题,我们在做功能连接选择ROI的时候,参照的文献中没有给出相应的坐标,只写了解剖部位,比如left and right OFC等,我们看到REST和DPARSF中均有 Predefined ROI from AAL template by selecting specific area 这个选项,不知该如何选择ROI,请老师指点。

 文章中应该明确其确定种子ROI的方法。是否通过AAL模板?或者什么其它的方法?如果你仍然不能确定,可以把那篇文章列在这儿,我看看是如何确定的。

你好!DPARSF里面带的模板是这样制作的(http://www.restfmri.net/forum/node/1210#comment-1911):
2. Harvard Oxford Atlas
The atlas is based on the Harvard Oxford atlas files (thresholded at probability 25%) provided in FSL:
HarvardOxford-cort-maxprob-thr25-2mm.nii.gz (cortical)
HarvardOxford-sub-maxprob-thr25-2mm.nii.gz (subcortical)

Given the order in the original files were not easy to use in extracting ROI time series (e.g., the left right ROI share the same index), the ROIs were re-indexed as detailed in the {DPARSF}\Templates\HarvardOxford_Atlas_NewIndex_YCG.xlsx
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