Hi Peter, This sounds very familiar (including the effect on the opposing hemisphere) to something I've observed previously under FS v5.1 -- see the posts titled "control point guidance" from late Jan 2012. This may be related to a change in how CP's were used in FS v5.1, which I believe they are planning on backing out in the next release.
I've personally always found it much easier to predict what would occur using direct edits to the wm.mgz, rather than control points. And in this case, wm edits are what we did. cheers, -MH On Thu, 2012-07-12 at 13:15 -0400, Peter McNally wrote: > Dear FreeSurfer, > > Hello, I am currently working on a project using FreeSurfer (version > 5.1.0) at the Kable Labs at the University of Pennsylvania, and I have > come across a problem when using control points to add incorporate > more of the white matter into the white matter surface. After > highlighting the parts of the white matter that have yet to be brought > into the white matter surface with CPs, it will sometimes do what I > intend it to but often will not. The strange part is that when it > fails to incorporate more wm into the wm surfs it often actually > removes a considerable amount the white matter both from the wm.mgz > volume and from the white matter surface. Once it even did so on the > opposite hemisphere as where I had put down control points. This > problem seems to occur exclusively in the anterior end of the temporal > lobe (everywhere else my use of control points has presented me with > no problems), and it happens both when using control points sparingly > and aggressively (I did a bit of experimenting, and the quantity of > CPs that I used seemed to make no difference). Do you have any advice > for how I might be able to get around this dilemma and/or why it > likely is occurring? Thank you very much for your time. > > Best, > Peter McNally > _______________________________________________ > 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. _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
