This would require that the ROIs were in alignment with your T1-w image prior
to the coregistration. Another explanation would be that the headers (or mat
files - depending on SPM version) or the ROI image were write-protected.
On Friday 16 January 2009 14:48, Richard Binney wrote:
> I'm using 'coregister:estimate and reslice' to tranform ROIs in native T1
> space to DWI space. Using check-reg and the automatic graphic, it appears
> to have successfully registered the T1 to the DWI b=0 image. I have
> several ROIs that I have put as 'other images'. Although it has worked in
> the past, the registration of the ROI places the ROIs in a position that
> not only doesn't fall in the correct place on the DWI, it no longer fits on
> my resliced or my original T1 image.
> I found inconsistencies in the success of this before, but 'try and try
> again' let me to successful results. Now I can't get it to work at all.
> Does anyone have any ideas what might be happening?
> I am using nearest neighbour interpolation so that ROIs remain in binary