Hi Maria
you can use tkregister2 to check the accuracy of the talairach.xfm
transform ("xform" for short), and correct it if you want.
cheers
Bruce
On Tue, 13 Sep 2011, Maria Felber wrote:
> Hi Bruce,
>
> thanks for the first response. I tried to find some information on the
> webpage about xform, but failed. So what is xform standing for and where/how
> can I check it?
> As in the later processing stages I want to do localization and
DCM-Modeling with my data, I guess the correct talairach coords are kind of
important for later comparisons.
> Thanks again,
> Maria
>
> ----- Original Message -----
> From: "Bruce Fischl" <fis...@nmr.mgh.harvard.edu>
> To: "Maria Felber" <fel...@cbs.mpg.de>
> Cc: freesurfer@nmr.mgh.harvard.edu
> Sent: Friday, September 9, 2011 2:13:05 PM
> Subject: Re: [Freesurfer] Talairach transformation
>
> Hi Maria
>
> as long as the tal xform is reasonable I wouldn't worry about it, unless
> for some reason you care a lot about the accuracy of the talairach coords.
>
> cheers
> Bruce
>
> p.s. not sure why it would be smaller
>
> On Fri, 9 Sep 2011, Maria Felber wrote:
>
>> Dear all,
>>
>> sorry, if that question came up before in the mailing list and I simple have
>> been unable to find the thread.
>>
>> Following the wiki reconstruction workflow, I ran yesterday the recon-all
>> -all process. The process finished without errors. So the next step was to
>> check the talairach transform.
>> Now, according to the FsTutorial/Talairach I have to make some adjustments
>> and then run the whole process again. That is all nice and good.
>>
>> However, why is it, that the talairach volume is always, no matter which
>> subject I look at, is always significantly smaller than the target volume?
>> Is that normal? Has it to be fixed? Or is that just normal? Attached find
>> one example.
>> As I am using freesurfer for the first time, I am really unsure about that.
>>
>> Thanks for the help,
>> Maria
>>
>>
>
>
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