We have 4 time points for that subject and it's an issue in all 4, to a lesser degree in one of them, but still an issue. Same area, same hemisphere, every time. Perhaps it is pathology based, I am not entirely sure.
On Jun 28, 2013, at 11:19 AM, Martin Reuter wrote: > Hi Jonathan, > > is this in cross sectional processing or in longitudinal? > > One thing I notice is significant motion artifacts (ringing), which seem to > lead to underestimation of WM, also you could fine tune the skull strip. > > Best, Martin > > On Jun 28, 2013, at 10:19 AM, Jonathan Holt <whats...@umich.edu> wrote: > >> Hi all, >> >> I'm having a bit of trouble with one particular subject for which we brains >> for 4-5 different time points. The pial surface is consistently misplaced in >> the same area, see attached main/aux volume images. I'm hesitant to manually >> replace the white matter myself as I fear it wouldn't be as accurate. >> Suggestions on other methods to fix this? >> >> The problem is always in the LH temporal right around the lateral inferior >> ventricle and the fusiform and other subcortical structures. >> >> >> <Screen Shot 2013-06-28 at 10.18.59 AM.png><Screen Shot 2013-06-28 at >> 10.14.50 AM.png>_______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > --------------------------------- > Dr. Martin Reuter > Assistant in Neuroscience - Massachusetts General Hospital > Instructor in Neurology - Harvard Medical School > MGH / HMS / MIT > > A.A.Martinos Center for Biomedical Imaging > 149 Thirteenth Street, Suite 2301 > Charlestown, MA 02129 > > Phone: +1-617-724-5652 > Email: > mreu...@nmr.mgh.harvard.edu > reu...@mit.edu > Web : http://reuter.mit.edu > > > 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. >
_______________________________________________ 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.
