Re: [Freesurfer] Non-rigid registration approaches

2018-04-25 Thread Hedyeh Javaheri
there a way to get past this error? -Hedyeh Date: Tue, 24 Apr 2018 13:20:20 -0400 From: Douglas Greve Subject: Re: [Freesurfer] Non-rigid registration approaches To: Message-ID: <52506cd6-286b-21a0-859a-1cda85557...@mgh.harvard.edu> Content-Type: text/plain; charset="utf-8" Sorr

Re: [Freesurfer] Non-rigid registration approaches

2018-04-24 Thread Douglas Greve
edyeh - Date: Tue, 17 Apr 2018 11:49:04 -0400 From: Douglas Greve <mailto:dgr...@mgh.harvard.edu>> Subject: Re: [Freesurfer] Non-rigid registration approaches To: <mailto:freesurfer@nmr.mgh.harvard.edu>> Mes

Re: [Freesurfer] Non-rigid registration approaches

2018-04-21 Thread Hedyeh Javaheri
- Date: Tue, 17 Apr 2018 11:49:04 -0400 From: Douglas Greve Subject: Re: [Freesurfer] Non-rigid registration approaches To: Message-ID: <763da2ef-359a-9f44-9b54-1f96acb3b...@mgh.harvard.edu> Content-Type: text/plain; charset="utf-8" Not really. Are you t

Re: [Freesurfer] Non-rigid registration approaches

2018-04-17 Thread Douglas Greve
Not really. Are you trying to account for B0 distortion in the DTI? If you have a B0 map, you can pass that to bbregsiter and mri_vol2vol to account for it On 4/16/18 10:29 AM, Hedyeh Javaheri wrote: Hello all, I am performing DTI analysis and wanted to know if Freesurfer has a tool for non

[Freesurfer] Non-rigid registration approaches

2018-04-16 Thread Hedyeh Javaheri
Hello all, I am performing DTI analysis and wanted to know if Freesurfer has a tool for non-rigid registration. I performed recon-all and dt_recon on my subject and then used the register.dat file that was generated by dt_recon to convert the dt_recon output files back into the space of my orig.ni

Re: [Freesurfer] Non rigid registration

2012-07-30 Thread Douglas N Greve
It depends on what the reviewer is concerned about. You don't want to use a fully non-rigid registration because the drop out will look like the edge of the brain, and the non-rigid will warp it incorrectly. If he/she is talking about using something more constrained like B0 correction, then i

[Freesurfer] Non rigid registration

2012-07-30 Thread SHAHIN NASR
Hi, In our functional MRI studies, we co-registration the functional images to anatomical scans (a part of preproc-sess routine in version 5) before measuring the contrasts. But for one of our studies, a reviewer has asked if a “non-rigid image registration” would change results when we are