Thanks for the quick reply! Also thanks for the link; I missed that in
my earlier search. I tried bias-correcting only, and it doesn't look as
good as with skull stripping (see attached picture. the brain in the
middle is bias corrected).
John Ashburner wrote:
> I see you have pretty large inhomogeneities in your images. Bias correction
> will certainly help here, and maybe you don't need the skull stripping.
> Bias correcting before coregistration was actually mentioned on the list not
> so long ago...
> Best regards,
> On Monday 20 October 2008 19:44, Neil Chatterjee wrote:
>> Hi SPMers,
>> I've noticed that I have more luck with coregistration if I first bias
>> correct and skull strip my T1 structural images with the VBM toolbox.
>> See attached pictures for two examples (one is very noticeable, the
>> other subtler). I've looked through the email archives and the spm5
>> manual and haven't seen any mention of it so far.
>> Does anyone know why my coregistration might be off in the first place?
>> Also, is this a valid workaround that has been tried before?
Neil R. Chatterjee
Stanford Systems Neuroscience & Pain Lab
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