You are currently using 6 dofs (rigid registration). If you use --dof
12, it will get better. Having said that, nothing will make it that good
since this is a volume-based affine registration.
On 2/28/18 10:04 AM, Albrecht, Daniel S. wrote:
Hi Doug,
Sorry for the lack of information. We aren’t getting any specific
error message or failure, it’s more so that we’re unable to get a good
registration of the native space T1 to fsaverage. We tried several
registration tools/commands, but an example of one of the best is below:
mri_coreg –s fsaverage –mov /path_to_T1.nii.gz –reg
T1_lin_fsaverage.lta –regdat T1_lin_fsaverage.dat
We then visualized with the suggested tkregisterfv command:
tkregisterfv –mov /path_to_T1.nii.gz –targ
/path_to_fsaverage/mri/brainmask.mgz –reg T1_lin_fsaverage.dat
See the relatively poor registration in the screenshot attached here.
I tried to overlay this ROI using tkmedit with the registration from
the step above as suggested by the “VolumeRoiCorticalThickness” page,
and get the suboptimal overlay in the second attached image.
Any suggestions for improving this registration?
Thanks,
Dan
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