Skull Stripping

Forums Forums Cortical Surface Extraction Skull Stripping

This topic contains 1 reply, has 2 voices, and was last updated by  David Shattuck 4 years, 2 months ago.

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  • #202

    sfenske
    Participant

    Hi,

    If the mask does not correctly cover the brain (parts of the cerebellum are missing), does this change tissue classification?

    Thanks.

  • #205

    David Shattuck
    Keymaster

    Hi –

    The voxels in the mask are used to estimate parameters for bias field correction and tissue classification. The more accurately the mask represents the brain the better, the more data there are for these estimates. This is particularly important for the bias field, as it is spatially varying. You will get different results if you remove pieces of the cerebellum, but small errors in the mask probably won’t affect it too much.

    thanks,
    David Shattuck

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