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
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