In that post, I'm not saying that we have a meninges segmentation, just
that the meninges might be removed when doing skull stripping. This will
not remove the signal from meninges that has partial-volumed into the
brain. We don't have a way to do that unless there is a meningeal ROI.
On 1/30/2025 10:24 AM, Sneha Pandya wrote:
External Email - Use Caution
Dear Doug,
We are working on PET images and our tracer has a lot of non-specific
binding close to meninges. To do so we want to be able to mask out
meninges and other areas outside the brain. Following up on your
suggestion as in *MailScanner has detected a possible fraud attempt
from "secure-web.cisco.com" claiming to be*
https://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg52008.html
<https://secure-web.cisco.com/1Ae5FkdxMKpYB4bvu5-OiOws53J6bGdKfXI6vjilmtNuqXWJAGptNfWZr9sICR3xnOCLzvdGZkU9KG9UUnsRDaK20p_0j7FM6QdO7zpcDhfrMu-wLgtb8Ygw39JRFCX7Wn3nbZP5_oEQyhQHMeHwo-8Zhce-pp5dhtaqbP6Y7eX1xDUNiS9la7l6harRUvJSWRGOJd9_qDr7z-dOo_mlzVueFtyja_ABEVO2d2HNfRepSjV62TLfYC_0Mw3NUMMGfMLi83lBJUe4Y0yrCRlrpNpr33wx3EC5KHE8yomMpsUHcVSv2qcKrWBNz6REGkFzL9BMnY1kF1HftS1yMwybcKg/https%3A%2F%2Fwww.mail-archive.com%2Ffreesurfer%40nmr.mgh.harvard.edu%2Fmsg52008.html> thread
we are planning to extract meninges ROI and mask it out from our PET
image.
What labels should we include from the aseg.mgz and gtmseg.mgz file to
be classified as "brain". We want to compare our regional PET uptake
with PVC'ed PET data as well hence gtmseg.mgz.
Thank you,
Sneha
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