sorry, what is the dura flag you are talking about? Also, dura generally interferes with the placement of the pial surface, not the white (ie, white-gray boundary) surface.

On 12/7/2023 2:20 PM, Akkoyunlu, Beyza wrote:

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Hi,

I have longitudinal data with MEMPRAGE. I want to improve white-gray matter boundaries by using dura flag. But I’m a bit lost about how to do it. Your previous recommendations to use echoes with “mri_make_surfaces” function, yet the surfaces only needed-created in the base and long steps.

Should I register the echoes to the respective anatomical’s long version and then use mri_make_surfaces? if not, do you have any suggestion about how to go for it?

Thanks in advance

Best, Beyza

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