Hi everybody,
I'm currently processing a series of rest fmri data which need to be manually normalized.
The procedure briefly goes like this:
-- dparsf completed the pre-normalization steps from 'dicom->nifti' to 'realign'
-- toggle spm, 'coregister: estimate',
-- switch AFNI,
'3dWarp -deoblique' and '3drefit -markers ' to generate sturctural .HEAD/BRIK pair
'3dTcat' to generate epi .HEAD/BRIK pair
-- manual normalization in AFNI under the talairach cordinate system and got the '+tlrc.HEAD/BRIK' files
-- '3dAFNItoNIFTI' to generate the '.nii' files which were transformated into NIFTI subsequently by MricroN
-- dparsf then performed 'smooth-->detrend-->filter-->ALFF,mALFF',
'detrend-->filter-->Reho' successfully
-- statistic analysis in rest
during the procedures, I used a mask made from talairach N27 template available in AFNI.
Presented in the rest_slice_viewer, the map and the template were well matched as stated in the previous topic. However, back in AFNI, I found a mismatch between the underlayed N27 template and overlayed statistic map.
So I checked backforth the interim files.
The manually normalized files matched the template well:
Nevertheless, the detrended file could not be presented in talairach view as overlay:
so I did a '3dcopy' to get the talarich view of the detrented file as overlay, but with significant mismatch:
So it was with the statistic map as overlay.
What might the problem be?
Were there any possible operational missing or mistakes during my procedure?
Thanks a lot!
Marvel
Submitted by YAN Chao-Gan on Thu, 10/07/2010 - 19:32 Permalink
Re
Hi!
Thanks for your post.
A new program has been updated for this issue. Please see: http://www.restfmri.net/forum/Programs_YAN#comment-674