如何利用DPABI计算脑区的相对灰质体积?

据说所知,在DPABI里面应用ROI  signal extractor 对mwrp文件进行提取提取的是平均灰质体积,请问如何才能实现计算一个脑区(如海马)的绝对体积或相对体积呢?课题组有师兄是基于AFNI软件用代码实现了脑区内的逐体素相加,DPABI里是否能实现这样的功能呢?

Forums:

DPABI的Viewer看图问题

老师您好:

         我用dpabi的viewer读图,用underlay打开图片时,MATLAB显示“Cannot access file”,我发现不能读的图是float格式,是因为这个原因么?谢谢老师!期待老师的回复

Inquiry about voxel size change

Dear Dr. Yan,

I have a question about changing voxel size.

I want to get ROI signal by applying Yeo atlas.

I have fMRI data with 3mm voxel size but there are only 1mm and 2mm voxel size Yeo atlas.

So I want to change 3mm voxel size to 2mm in the preprocessing process using DPABI.

Could I simply change voxel size on the DPABI like the image I uploaded?

Could you give me some advice on this problem?

Thank you.

 

Forums:

Error using ones because of NaN and Inf not allowed

在可视化操作中发现reho值 (F_reho_PairwiseDiff_Z_G1vsG2.nii) 的结果无法成功显示. 提示内容是 Error using ones (NaN and Inf not allowed). Please help.

Forums:

about reliability of the Reho

I've been doing research on Reho reliability recently.In the meantime, I use DPARSFA for data preprocessing,Then I had some problems.first,Should I choose smooth derivatives?second,if I choose smooth derivatives,I'll get two folders :Results and ResultsS. I will get the mReho,Reho,zReho and smReho ,sReho ,szReho,Which file is generally used to analyze the reliability of Reho?

      

Forums:

about reliability of the Reho

I've been doing research on Reho reliability recently.In the meantime, I use DPARSFA for data preprocessing,Then I had some problems.first,Should I choose smooth derivatives?second,if I choose smooth derivatives,I'll get two folders :Results and ResultsS. I will get the mReho,Reho,zReho and smReho ,sReho ,szReho,Which file is generally used to analyze the reliability of Reho?

      

Forums:

Schaefer2018_400Parcels_7Networks_order_FSLMNI152_1mm.nii and MNI coordiantes

Dear DPARSF developers

Thanks for the recent updates.

How to extract the corresponding coordinates in MNI space for Schaefer2018_400Parcels_7Networks?

 

Best wishes

Larry Lai

 

 

 

Forums:

What is the meaning of this document T2.nii_Cohen_f2?

After completing the two-sample t-test by SA, two files were generated:T2& T2.nii_Cohen_f2.

What is the meaning of this document T2.nii_Cohen_f2?

Forums:

Detailed description of head motion scrubbing regressors

Dear Yan,

I did a "head motion scrubbing regressors" in the nuisance regression step in DPARSFA in my study. The reviewer asked me how this was performed in detail. I know this is different from the "scrubbing" at the bottom of DPARSFA, so it's inappropriate to cite Power et al., 2012. But is there any reference that I can refer to? Is the processing the same to what the FSL's motion outliers tool (http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLMotionOutliers) does?

Thank you so much.

Minlan

Forums:

How to use "Extract ROI time courses" separately?

Hi, pro. Yan

I had used DPARSF A computed whole-brain  FC  with a specific ROI (a sphere) a few days ago, and I have the individual FC results.

Now, I want to extract the time courses of a specific region (already have the mask) in these individual results image

Can DPARSF A achieve that?

How should I do?

Particularly, I do not know what is the right "Starting Directory Name".

Thanks for your reply!

BEST WISHES!

Lucy

 

Forums:

Pages

Subscribe to Front page feed