I would like to inquire if there is a FreeSurfer command that allows me to measure the distance (in voxels or mm) between a lesion mask (output of samseg) and the closest voxels in the ribbon after applying "recon-all" to T1 images. If there is no such command, I am considering measuring the center of the lesion mask and calculating the distance between this center and every voxel in the closest parcel in the ribbon, then selecting the shortest distance. i'm not sure if this is the correct approach so I appreciate your suggestions.

Thank you

John