Thank you Doug !
Le 7/8 11:44, Douglas N Greve a écrit : > Hi Alex, use the eTIV from the longitudinal subject. In theory, the size > of the skull is not changing, and the longitudinal analysis gives you > the best estimate of this unchanging number. > doug > > On 08/06/2013 06:00 PM, Alex Hanganu wrote: >> Hello, >> >> I am measuring the changes of subcortical volumes in a longitudinal >> study, so I took the volumes from longitudinal subjects >> (/name.long.base/). Now we need to perform the correction using the >> eTIV parameter, but the eTIV for longitudinal subjects for all time >> points is the same (/i//.e. eTIV for subject-time1.long.base = eTIV >> for subject-time2.long.base/) >> >> Is it correct to perform the correction using the eTIV values from the >> longitudinal subjects, or we should use these measures from the >> cross-sectional corresponding subjects ? >> >> Thanks, >> >> Alex. >> >> >> _______________________________________________ >> 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.
