The 5.2 image has been smoothed, by a small degree, relative to 5.1. Either prior to FS processing or by FS, it would seem.
On Mon, Apr 15, 2013 at 3:29 AM, Christopher Bell < christopherbell2...@gmail.com> wrote: > Looking at the image posted previously..... > > https://yalesurvey.qualtrics.com/SE/?SID=SV_ddwW7I9yMQuCtPn > > I think it is pretty clear the 5.1 picture has better gray/white contrast. > It is a very subtle difference, but you can see it if you look at some > pieces of > wm that were "missed" by 5.2 in this image. > > > > > On Thu, Apr 11, 2013 at 12:33 PM, Yang, Daniel <yung-jui.y...@yale.edu>wrote: > >> Thanks Nick! I have uploaded the relevant files to you. >> >> Thanks, >> Daniel >> >> -- >> Yung-Jui "Daniel" Yang, PhD >> Postdoctoral Researcher >> Yale Child Study Center >> New Haven, CT >> (203) 737-5454 >> >> >> >> >> >> >> On 4/10/13 1:19 PM, "Nick Schmansky" <ni...@nmr.mgh.harvard.edu> wrote: >> >> >Daniel, >> > >> >We're repeating our paired-analysis of thickness measures between 5.1 >> >and 5.2. In the meantime, to check for correctness, open the >> >brain.finalsurfs.mgz file with the surfaces overlayed, and check the >> >intensity value of the voxels which appear to be non-cortical 'black >> >spaces', relative to neighboring gm voxels. ignore the aseg.mgz gm >> >voxels, as those are not accurate (ie, dont load aseg.mgz when >> >inspecting surfaces, or at least turn if off when inspecting gm >> >regions....its still handy to see where hippocampus sits). >> > >> >Nick >> > >> > >> >On Wed, 2013-04-10 at 11:11 +0000, Yang, Daniel wrote: >> >> Dear FreeSurfer Experts and Users, >> >> >> >> Did anyone find similar things using FS 5.2 (please see my previous >> post >> >> below)? That is, FS 5.2 is including more non-cortical "black spaces" >> >> within pial surfaces, compared to FS 5.1? >> >> >> >> I'm not interested in nitpicking but I feel this is a rather serious >> >> issue, so I would like to raise it again before it's completely >> >>forgotten. >> >> >> >> At the meantime I keep receiving Emails from people asking me this >> >>issue. >> >> >> >> Thanks! >> >> Daniel >> >> >> > >> > >> > >> > >> >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 >> > >
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