Hi Kevin, It shouldn't. I created the labels by the doing the following: 1 - manully raced an ROI using another program (Analyze) in volume space and saved the ROI as a greyscale mask in analyze format 2 - used mri_convert to convert both the original T1 and ROI to COR format. 3 - Generated the surface of the T1 and loaded the ROI as an overlay in tksurfer 4 - Filled the overlay using custom fill and saved it as a label.
I'm not sure how I would check the image dimensions of the label, but I assume step 2 would have put it into 1mm3, which would then convert to 1mm2 when projected onto the surface (?). -----Original Message----- From: Kevin Teich [mailto:[EMAIL PROTECTED] Sent: Thu 8/11/2005 5:18 AM To: Fornito, Alexander Cc: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] Editing labels > I've been trying to edit some labels in tkmedit and have noticed that if > I save a label in tkmedit and then project it back onto the surface in > tksurfer, it appears fragmented (ie., speckled). This happens even if I > save a label that was created in tksurfer in tkmedit without even > editing it (ie., create label in tksurfer, load it in tkmedit, save it > in tkmedit (without editing), and then load it back in tksurfer). I > don't understand why this should happen, particulalry in the latter > case, as the label should remain unchanged. Can anyone explain why this > might happen? Thanks, Alex Does your data have a voxel resolution different than 1mm squared? -- Kevin Teich _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
