YesHi Bruce,That is, I should set eTIV at Nuisance Factors for volume and surface area, not for thickness in qdec, is it right?
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At 2017-11-27 10:22:05, "Bruce Fischl" <fischl@nmr.mgh.harvard.edu> wrote: >you should correct for eTIV for volume (but not for thickness) >On Mon, 27 >Nov 2017, Ö£·ïÁ« wrote: > >> Hi Greve, >> Only for age and surface area, no thickness or volume, is it right? >> >> Thanks! >> Zheng >> >> >> >> >> At 2017-11-26 03:04:26, "Douglas Greve" <greve@nmr.mgh.harvard.edu> wrote: >> >> Yes, for age and surface area. >> >> >> On 11/23/17 2:05 AM, Ö£·ïÁ« wrote: >> Hi professors, >> >> I am using Qdec in Freesurfer. I want to study the relationships between age and >> cortical thickness, age and cortical volume, age and surface area. Is it necessary to >> corrected by eTIV for volume and surface area in Qdec? >> I am looking forward to your reply. >> >> Thanks, >> Zheng >> >> >> >> >> >> >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> >> >> >> >> >> >>
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