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Dear Channelle and Eugenio,

Just to point out that SPM12 has spm_mesh_calc, which is the
surface-based equivalent of volumetric spm_imcalc.

Best regards,
Guillaume.


On 24/06/2019 15:24, Eugenio Abela wrote:
> Hi, 
> 
> you can use CAT12’s Surface Calculator You either find it on the CAT12 GUI, i.e. CAT12 -> Surface Tools->Surface Calculator, or via SPM12->Batch->SPM->Tools->CAT12-> Surface Tools->Surface Calculator. It works similar to spm_imcalc.
> 
> Cheers
> 
> eu
> 
> 
> 
> 
> On 24 Jun 2019, at 15:15, Channelle Tham <[log in to unmask]> wrote:
> 
> Hello experts,
> 
> I am currently attempting to create a whole brain image displaying the percent relative difference in cortical thickness from one subject scanned in 2013 and again in 2019. The thickness file is a GIFTI file, which ImCalc cannot run suface level calculations on. If anyone is familiar of a CAT12 function that can perform this task, your advice would be greatly appreciated.
> 
> Thanks,
> CT
> 

-- 
Guillaume Flandin, PhD
Wellcome Centre for Human Neuroimaging
UCL Queen Square Institute of Neurology
London WC1N 3BG