I have the following error: unknown option --cras_correction. I am using FreeSurfer 5.3, I don't known if it helps.

By the way, I was wondering: why this c_ras vector is not taken into by default e.g. with mris_convert or mri_tesselate ?

2016-06-07 16:54 GMT+02:00 Douglas Greve <greve@nmr.mgh.harvard.edu>:

Try adding --cras_correction to the command line and see if it works.

On 6/7/16 10:27 AM, Alexandre Routier wrote:

Hello,

I would like to work with mesh representation of pial and white surfaces in vtk format. To do that, I use the following syntax:

mris_convert lh.pial lh.pial.vtk

However, there is a small issue after conversion: the vector called 'c_ras' (the RAS at the 'center' of the volume according to mri_info) is not taken into account. I can manually add this c_ras vector to correct that but I was wondering if there was any flag for mris_convert or a special command to do that ?

This kind of flag exists for mri_tesselate (with -n flag which ables to "save surface with real RAS coordinates where c_(r,a,s) != 0") so I was hoping the same kind of flags for mris_convert.

Thanks in advance for your answer !

Alexandre

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