Hi Priti - Thanks for your help. The inter-subject registration seems to have run OK, but there must be something wrong with the intra-subject registration. When I try to view it using freeview, it's completely dark - I don't see a brain at all. Is there a way to troubleshoot this?
Thanks,
Kiely
On Wed, May 9, 2012 at 2:08 PM, Priti Srinivasan < rspriti@nmr.mgh.harvard.edu> wrote:
Hi Kiely,
Have you checked your inter and intra subject registrations? The control points going off the dwi is not only for one paths but for all the paths. If the registration goes terribly wrong, this can happen. You can take a look at
/dmri/lowb_brain_anat.flt.nii.gz (For intra subject registration diff-anat)
and
/dmri/brain_anat_mni.nii.gz (For inter-subject registration anat-mni)
I would start by checking that first.
Priti
Hello--
I have run Tracula successfully for ~75 healthy subjects. However, the pathway reconstruction seems to fail for a handful of people. I've attached the log file for one of these subjects. It appears that the control
points
are not within the dwi. A similar problem occurred in a subject with substantial signal loss in the dwi, but that doesn't seem to be the case for this particular person. I have been creating the entire set of
tracts,
but at this point, I'm only interested in the SLFt and SLFp.
Thanks,
Kiely _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.