Hi Bruce,

Thanks for your reply! I had a couple follow up questions:

1) In order to calculate the total ventricular CSF, should I add the CSF volume reported in the aseg.stats file to the other ventricular volumes or no?

2) Would there be a way to segment the sulcal CSF based on the T2 image?

Thanks again for your help, Panos

Hi Panos

sorry, we don't segment sulcal CSF

Bruce On Mon, 16 Jun 2014, pfotiad@nmr.mgh.harvard.edu wrote:

...

Hi FS community,

I was wondering whether there is a way to calculate accurately the CSF volume with FreeSurfer (I have both T1 and T2 images). Should I just add the ventricular structures and the CSF volume reported in aseg.stats or is there another way to account for the sulcal CSF based on the T2 and add it to the other volumes?

Thanks in advance, Panos _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

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

I see, thanks!

1. No, just add up all the ventricle measures.
2. I think FSL might do this, but you would probably have to mask out the

ventricles as I doubt they label sulcal csf separately

On Tue, 17 Jun 2014, pfotiad@nmr.mgh.harvard.edu wrote:

...

Hi Bruce,

Thanks for your reply! I had a couple follow up questions:

1. In order to calculate the total ventricular CSF, should I add the CSF

volume reported in the aseg.stats file to the other ventricular volumes or no?

2. Would there be a way to segment the sulcal CSF based on the T2 image?

Thanks again for your help, Panos

...

Hi Panos

sorry, we don't segment sulcal CSF

Bruce On Mon, 16 Jun 2014, pfotiad@nmr.mgh.harvard.edu wrote:

...

Hi FS community,

I was wondering whether there is a way to calculate accurately the CSF volume with FreeSurfer (I have both T1 and T2 images). Should I just add the ventricular structures and the CSF volume reported in aseg.stats or is there another way to account for the sulcal CSF based on the T2 and add it to the other volumes?

Thanks in advance, Panos _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

---

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

---

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

---

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