I should have been more clear: "I doubt it" was in response to this:
> is it required that the contours be midthickness I would think you could at least fool it into working. On May 7, 2013, at 1:28 PM, Colin Reveley <[email protected]> wrote: > thanks > > re: saggital and horizontal: forget that then. > > so > > the question returns to: can I use contours as a mechanism to correct > artifact in the mri and make a wm segmentation that is helpful? > > I RTFM (the caret tutorial dated about 2008) on contours and while the > examples are midthickness it mentions WM tracing as valid. > > So you say "I doubt it" but the docs suggest it can work > > the idea is: trace the wm at 0.5mm intervals. make into a surface. fill with > voxels. if i like it, that's my wm seg. if not, adjust the contours till I do > like it. > > we really need to make this segmenation. it's turning out out to be hard due > to the artifact. we've even pulled old (1999) scans of this brain from tapes > in germany but those were corrupted. > > only part of the scan has artifact (ripple). > > we are really working hard to solve this problem so if anyone knows for sure > if tracing the WM wouldn't make a WM surface I'd be grateful to know before I > plow into it head first. > > Otherwise It's voxel by voxel correction of the segmentation volume in the > problem region for me. > > thanks > > Colin > > > _______________________________________________ > caret-users mailing list > [email protected] > http://brainvis.wustl.edu/mailman/listinfo/caret-users _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-users
