Thanks for replying me. But I still have two questions.

Firstly, when I try xhemi on pre-possessed longitudinal data, it showed error like this:
Performing left-right swap of labels
TR=2300.00, TE=2.98, TI=900.00, flip angle=9.00
i_ras = (-1, 3.72529e-08, 3.35276e-08)
j_ras = (-2.6077e-08, -3.72529e-09, -1)
k_ras = (-1.78814e-07, 1, 6.98492e-10)
writing to /HD4/symptom_test//subj_02_1.long.s02_base/xhemi/mri/aparc+aseg.mgz...
Wed Dec 20 17:46:35 EST 2017
recon-all -sb subj_02_1.long.s02_base/xhemi -talairach

ERROR: Are you trying to run or re-run a longitudinal time point?
       If so, please specify the following parameters:

       \' -long <tpNid> <templateid> \'

       where <tpNid> is the time point id (SAME as cross sectional
       ID) and <templateid> is the ID created in the -base run.
       The directory <tpNid>.long.<templateid> will be created
       automatically or used for output, if it already exists.

Secondly, how I can get the change rate after construct left -right registration.

Thanks,

Lanbo

On Fri, Dec 22, 2017 at 5:40 AM, Martin Reuter <mreuter@nmr.mgh.harvard.edu> wrote:

Hi Lanbo,

you could look at longitudinal changes of the left-right difference in volume per ROI. Or do you mean on the cortical thickness map (I have never done that, but probably works similarly, construct left -right registration, compute difference, then run the LME on that).

Best, Martin

Am 17.12.2017 um 17:54 schrieb lanbo Wang:
Hi, all experts.

I want to compare changes rate between left and right hemisphere of longitudinal data, How should I do that, how to combine xhemi with two stage or LME?

Best,

Lanbo
_______________________________________________
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.