so that region really is cortex? It's not filled in ventricle or anything? On Thu, 7 Aug 2014, Harms, Michael wrote:
Yeah, the insula label is present medially when viewed on the white surface as well, so its not just a quirk of the inflation.
Not sure if I follow what you mean by the "aseg looking right". The aparc+aseg.mgz is actually where the RA first noticed the issue, since she noticed that some of the voxels labeled as insula were wrapping around all the way onto the medial surface.
cheers, -MH
-- Michael Harms, Ph.D.
Conte Center for the Neuroscience of Mental Disorders Washington University School of Medicine Department of Psychiatry, Box 8134 660 South Euclid Ave. Tel: 314-747-6173 St. Louis, MO 63110 Email: mharms@wustl.edu
On 8/7/14 2:32 PM, "Bruce Fischl" fischl@nmr.mgh.harvard.edu wrote:
Hi Mike
I'm not sure - I think the insula was an additional label that Ron Killiany added. I'll cc Ron to see if he has any insight. It certainly looks too medial to me.
I would also check on the white surface just to make sure that it's not a quirk of the inflation. If the aseg looks right we could certainly put together some simple auto-editing to correct this kind of thing
cheers Bruce
On Thu, 7 Aug 2014, Harms, Michael wrote:
Hi, An astute RA, while reviewing the aparc+aseg.mgz of brains processed with FS 5.3, noticed a fair number of instances, where the insula label "wraps around" pretty medially, where she was expecting to see orbitofrontal as the label. See attached jpg's for two examples shown on the inflated surface. Since this is fairly common, I'm assuming that this isn't anything to be concerned about, but just wanted to confirm.
Has this always been the behavior of the insula label, and we just didn't notice it previously?
thanks, -MH
-- Michael Harms, Ph.D.
Conte Center for the Neuroscience of Mental Disorders Washington University School of Medicine Department of Psychiatry, Box 8134 660 South Euclid Ave. Tel: 314-747-6173 St. Louis, MO 63110 Email: mharms@wustl.edu
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