Hi Douglas, Well, I usually use aparcstats2table with -m thickness, but what I get is the thickness for all those 34 hemisphere regions, but not that measure of mean thickness for the hemisphere. Could I be missing something?
thanks Daniel Message: 15 Date: Tue, 30 Oct 2012 11:17:56 -0400 From: Douglas N Greve <gr...@nmr.mgh.harvard.edu> Subject: Re: [Freesurfer] average measure of cortical thickness To: freesurfer@nmr.mgh.harvard.edu Message-ID: <508fefa4.9070...@nmr.mgh.harvard.edu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed You can get thickness with aparcastats2table with the -m thickness option. This gives you a measure of mean thickness for the hemisphere as well. do8ug 2012/10/30 Daniel Ferreira <dani...@ull.es> > Please, is there any automatic way to extract this "Mean Thickness" values > for lh and rh for a big group of subjects? As for example aparcstats2table? > > thank you very much > > Daniel > > > 2012/10/30 Bruce Fischl <fis...@nmr.mgh.harvard.edu> > >> yes, I think so >> >> Bruce >> On Tue, 30 Oct 2012, Daniel Ferreira wrote: >> >> So, as a measure of whole brain cortical thickness average is it better >>> to >>> "Mean Thickness" from aparc.stats file? >>> >>> >>> 2012/10/30 Bruce Fischl <fis...@nmr.mgh.harvard.edu> >>> Hi Daniel >>> >>> the parcellations are not uniform in size, and therefore the >>> average of them will not be the same as averaging over the >>> cortex. >>> >>> cheers >>> Bruce >>> On Tue, 30 Oct 2012, Daniel Ferreira wrote: >>> >>> Hi, >>> I was wondering what should I use as an average of >>> cortical thickness for >>> the whole cortex. >>> >>> The aparc.stats output gives a value of "Mean >>> Thickness" for each >>> hemisphere. But this value does not coincide with >>> the one I get if I average >>> the 34 variables from aparc.stats. Do you know why? >>> >>> thanks so much in advance >>> >>> 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<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. >>> >>> >>> >>> >
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