are you talking about the whole hippo seg? That will have some WM in it. You can also try the hippo subfield segmentation which will give you a more refined segmentation separating GM and WM.

On 11/7/2022 11:16 AM, Jun Yeon Won wrote:

External Email - Use Caution

Dear Freesurfer experts,

I have a question about hippocampal segmentation. For the hippocampal mask after completing recon-all, is it purely gray matter or does it also include some aspects of white matter and others? Please advise.

Best, JW

---

Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer