Hi Bruce, Just to clarify, when you say "average the thickness along each A/P coordinate" do you mean by looking up at the average cortical thickness of each parcellation and then calculating their average from P->A, or is there another way to find the average thickness of each slice and then see how that average changes from P->A? Thanks again for your time, Panos
> I see. Then measure the thickness normally, then see how it changes in > those directions. You could average the thickness along each A/P > coordinate > - that wouldn't be a problem. You just don't want to measure it that way > > cheers > Bruce > > > On Mon, 12 May 2014, > pfot...@nmr.mgh.harvard.edu wrote: > >> Hi Bruce, >> >> Thank you for your reply. I was interested in looking how the thickness >> changes from the posterior to the anterior side of the brain and vice >> versa (the thickness gradient). >> >> Thank you again for your time! >> Panos >> >> >>> Hi Panos >>> >>> it would certainly be possible to make that measurement, but it >>> wouldn't >>> tell you anything biologically interesting. Why would you want to do >>> such >>> a >>> thing? It will reflect the (arbitrary) image slice orientation and not >>> the >>> brain. >>> >>> cheers >>> Bruce >>> >>> >>> On Mon, 12 May 2014, pfot...@nmr.mgh.harvard.edu wrote: >>> >>>> Hi FS experts, >>>> >>>> I was wondering whether it would be possible to measure the average >>>> cortical thickness at a specific slice (either axial, coronal, or >>>> sagittal). I read in Bruce's paper: "Measuring the thickness of the >>>> human >>>> cerebral cortex from magnetic resonance images" that "Measuring the >>>> thickness from the coronal slice at the point indicated by the green >>>> cross >>>> would result in an estimate in excess of 1 cm." Is that always the >>>> case, >>>> or has there been a way to bypass that issue? >>>> >>>> Thank you for your time, >>>> Panos >>>> _______________________________________________ >>>> Freesurfer mailing list >>>> Freesurfer@nmr.mgh.harvard.edu >>>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >>>> >>>> >>>> >>> _______________________________________________ >>> Freesurfer mailing list >>> Freesurfer@nmr.mgh.harvard.edu >>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >>> >>> >>> >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > _______________________________________________ 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.
