DPABI/DPABISurf/DPARSF

如何利用DPABI计算脑区的相对灰质体积?

Submitted by doctorsol on

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?

Inquiry about voxel size change

Submitted by jLee on

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.

 

about reliability of the Reho

Submitted by lemon on

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?

      

about reliability of the Reho

Submitted by lemon on

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?

      

Detailed description of head motion scrubbing regressors

Submitted by YML on

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