We don’t do it that way.  Use probtrackx2 flags --xfm=${StudyFolder}/${Subject}/MNINonLinear/xfms/acpc_dc2standard.nii.gz and --invxfm=${StudyFolder}/${Subject}/MNINonLinear/xfms/standard2acpc_dc.nii.gz to bring seeds from standard space into structural space and the results from structural space into standard space.

Peace,

Matt.

From: <Archer>, Derek B <[email protected]>
Date: Monday, May 18, 2015 at 2:22 PM
To: Matt Glasser <[email protected]>, "[email protected]" <[email protected]>
Subject: RE: [HCP-Users] Minimal Preprocessing Pipelines

Hi Matt,

 

So to get the diffusion data into the standard space, which files are relevant under the MNINonLinear folder?  Sorry for the confusion.

 

Derek

 

From: Glasser, Matthew [mailto:[email protected]]
Sent: Monday, May 18, 2015 3:15 PM
To: Archer,Derek B; [email protected]
Subject: Re: [HCP-Users] Minimal Preprocessing Pipelines

 

You also need to download the structural data.

 

Peace,

 

Matt.

 

From: <Archer>, Derek B <[email protected]>
Date: Monday, May 18, 2015 at 2:12 PM
To: Matt Glasser <[email protected]>, "[email protected]" <[email protected]>
Subject: RE: [HCP-Users] Minimal Preprocessing Pipelines

 

Hi Matt,

 

I’m looking at the preprocessed data that I downloaded from ConnectomeDB, and I am not seeing the “MNINonLinear” folder.  Under the subject folder, there are the following folders:

 

.xdlm

release-notes

T1w

 

Do I need to download from elsewhere to get the nonlinear alignment?


Thanks,

Derek

 

From: Glasser, Matthew [mailto:[email protected]]
Sent: Monday, May 18, 2015 1:57 PM
To: Archer,Derek B; [email protected]
Subject: Re: [HCP-Users] Minimal Preprocessing Pipelines

 

Probably need to specify your probtrackx2 command lines, but both rigid alignment to MNI space and nonlinear alignment are available in the ${StudyFolder}/${Subject}/T1w and ${StudyFolder}/${Subject}/MNINonLinear locations respectively.  

 

Peace,

 

Matt.

 

From: <Archer>, Derek B <[email protected]>
Date: Monday, May 18, 2015 at 12:54 PM
To: "[email protected]" <[email protected]>
Subject: [HCP-Users] Minimal Preprocessing Pipelines

 

Hello,

 

For the diffusion data, are both FLIRT and FNIRT completed in the minimal preprocessing script?  I am doing tractography on relatively small tracts, and there seems to be high variability in the placement of the substantia nigra, putamen, and other regions. 

 

Thanks,

Derek Archer

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