not really. It is more of a question of whether the GTM or MG models are appropriate (ie, constant signal in an ROI). MG probably better than GTM because it makes fewer assumptions.

On 3/25/19 12:01 PM, miracle ozzoude wrote:

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Hello Doug,

Thanks for replying. Anything I should watch out for when using it for Tau processing?

Thanks.

Best, Paul

On Mon, Mar 25, 2019 at 11:19 AM Greve, Douglas N.,Ph.D. <DGREVE@mgh.harvard.edumailto:DGREVE@mgh.harvard.edu> wrote: It is certainly good for FDG. Tau is a little trickier, but I think it has been used. I think the reference region for tau is still an open question. For FDG, people often use pons.

On 3/25/19 10:33 AM, miracle ozzoude wrote:

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Hello FreeSurfer,

I would like to know if mri_gtmpvc for PetSurfer is appropriate for Tau (AV_1451) and FDG pet imaging. Also, is cerebellum a good reference point for both tracers?

Thanks. Paul

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