Do the surfaces look correct in these regions? You might post some screenshots of subjects who have a big difference between 5.1 and 5.2 with the 5.1 and 5.2 white and pial surfaces on volume slices that highlight the difference. Without this kind of info, its hard to know which was more correct, 5.1 or 5.2.
Peace,
Matt.
On 3/18/13 5:13 PM, "Ritobrato Datta" ridatta@mail.med.upenn.edu wrote:
I concur. I have seen similar results in primary visual cortex from ~40 subjects. While fs 5.1 estimated mean thickness in the range of 1.5 to 1.9 in V1, fs 5.2 is giving me V1 thickness in the range of 2 to 2.3.
Ritobrato Datta, Ph.D. Post Doctoral Researcher Department of Neurology University of Pennsylvania School of Medicine 3rd Floor, Room 312 3710 Hamilton Walk (Goddard Laboratories) Philadelphia, PA 19104-6241 email - ridatta@mail.med.upenn.edu
----- Original Message ----- From: Daniel Yang yung-jui.yang@yale.edu To: freesurfer@nmr.mgh.harvard.edu Sent: Mon, 18 Mar 2013 17:44:44 -0400 (EDT) Subject: [Freesurfer] Very different results between 5.1.0 and 5.2.0
Dear FreeSurfer Experts,
I ran FreeSurfer 5.1.0 and FreeSurfer 5.2.0 on identical set of 161 subjects, and I'm interested in rh_superior_temporal_sulcus_thickness in particular.
Previously, the mean thickness is 2.24 mm in 5.1.0; now it is 3.28 mm in 5.2.0. They are significantly different, t(160) = 56.71.
The correlation between the two versions is r = .33
Is this something possible?? I can't see what went wrong in my procedures.
Thanks! Daniel
-- Yung-Jui "Daniel" Yang, PhD Postdoctoral Researcher Yale Child Study Center New Haven, CT (203) 737-5454
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.