On 9/28/2023 4:13 PM, Lesage, Anne-Cecile wrote:

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Dear Freesurfer teams

I am working on sEEG data to help localize the epileptogenic zone at UTMB. We were wondering with Dr Karas if we could use the *.inflated surface to view better the electrodes in contact with the cortex. Do the *inflated surfaces have the same number of vertices and faces than the *pial ones?

Yes, they match one-to-one

Does the *inflated surface respect the same geodesic distance between vertices than the *pial ones?

Not exactly. It is impossible to inflate the surface without distortion, but the distortion is part of the cost function that the inflation tries to minimize

Thank you Best Regards

Anne-Cecile Lesage, PhD Research Scientist Department of neurosurgery University of Texas Medical Branch anlesage@utmb.edu

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