When you run your original mri_vol2vol command, add --reg-final 
reg.final.dat. You can then use

mri_vol2vol --reg reg.final.dat --mov yourmovvol.nii --targ 
yourvolume.mni305.nii --inv --o new.yourmovvol.nii

to map it back to the moveable space
doug



Andrew Dumas wrote:
> Thanks, Doug! One more question-- How can I invert this registration? I
> want to move the volumes in the common space back to each original
> subject space. mri_vol2vol won't accept a --targ when I specify --tal,
> but I'd like to use --inv.
>
> Andrew
>
> On Tue, 2011-12-20 at 14:58 -0500, Douglas N Greve wrote:
>   
>> Hi Andrew, use mri_vol2vol with the --tal --talres 2 or 2mm option (or 
>> --talres 1 for 1mm isotropic) option. This will put it into an MNI305 
>> space. So something like
>>
>> mri_vol2vol --reg register.dat --mov yourvolume.nii --tal --talres 2 --o 
>> yourvolume.mni305.nii
>>
>> If you did not create the register.dat with bbregister, I would strongly 
>> suggest it. It works really well on the partial volume files. If you do, 
>> you should specify your current register.dat as the init registration.
>>
>> doug
>>
>> Andrew Dumas wrote:
>>     
>>> Hi,
>>>
>>> I'm trying to move a bunch of partial FOV functional images (occipital
>>> cortex only with oblique coronal slices) into common space. For each
>>> subject, I have a registration file (register.dat) to register
>>> functional images to anatomicals, and I'd like to incorporate the
>>> talairach.xfm registration so that I have a matrix that registers the
>>> functional images to the mni305 volume. I've been using the following,
>>> but registrations aren't coming out properly:
>>>
>>> mri_matrix_multiply -im register.dat -iim
>>> <subject>/mri/transforms/talairach.xfm -om reg_to_common.dat
>>>
>>> I'm checking them using tkregister2, but the results don't look great.
>>> Is there a better/easier way to do this? Thanks!
>>>
>>> Andrew
>>>
>>> _______________________________________________
>>> Freesurfer mailing list
>>> Freesurfer@nmr.mgh.harvard.edu
>>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>>>
>>>
>>>   
>>>       
>
>
>   

-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358 
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html

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