Re: [Freesurfer] Regarding: Concatenating hippocampal to generate sig.mgh

2016-07-18 Thread Douglas N Greve
Try running make_average_volume. This will produce an aseg.mgz file with all the ROIs merged across all subjects On 07/13/2016 07:10 AM, Dr Sampada Sinha wrote: > Dear Bruce, I am trying to generate the following picture (please see > attached) for eod vs lod groups. Can you please tell me

Re: [Freesurfer] Regarding: Concatenating hippocampal to generate sig.mgh

2016-07-13 Thread Dr Sampada Sinha
Dear Bruce, I am trying to generate the following picture (please see attached) for eod vs lod groups. Can you please tell me how to do this? Thanks and regards, Sampada On Tue, Jul 12, 2016 at 6:44 PM, Bruce Fischl wrote: > Hi Sampada > > why not just take the

Re: [Freesurfer] Regarding: Concatenating hippocampal to generate sig.mgh

2016-07-12 Thread Bruce Fischl
Hi Sampada why not just take the volume of the hippocampus from the aseg.stats? Why do you want an mgz? You just want one number per subject, right? Bruce On Tue, 12 Jul 2016, Dr Sampada Sinha wrote: Dear Bruce,  Thanks for you for your response. I am trying to  generate an average

Re: [Freesurfer] Regarding: Concatenating hippocampal to generate sig.mgh

2016-07-12 Thread Dr Sampada Sinha
Dear Bruce, Thanks for you for your response. I am trying to generate an average hippocampal volume and its correlation with HAM-D score in early and late onset depression (eod vs lod). One way I tried to do it was by binarizing and concatanating the hippocampal volumes and then run mri_glmfit.

Re: [Freesurfer] Regarding: Concatenating hippocampal to generate sig.mgh

2016-07-10 Thread Bruce Fischl
Hi Sampada can you elaborate a bit? What are you trying to achieve? Do you want an average hippocampus? Average maps of subfields? What hypothesis are you trying to test? The individual subject data is not resampled to a common coordinate system, so just averaging them as is won't produce

[Freesurfer] Regarding: Concatenating hippocampal to generate sig.mgh

2016-07-09 Thread Dr Sampada Sinha
Dear freesurfer experts, Will you please let me know if it's possible to get one average mgz image file by concatenating the hippocampal volumes of different subjects using dev version? Since, I already have the hippocampal subfields mgz volume files, I intend to run the glmfit later on between