Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-25 Thread Douglas N. Greve
rom: * on behalf of "Douglas N. Greve" *Reply-To: *Freesurfer support list *Date: *Friday, February 25, 2022 at 10:25 AM *To: *"freesurfer@nmr.mgh.harvard.edu" *Subject: *Re: [Freesurfer] PetSurfer: subcortical volume-based analysis Are you doing an ROI analysis or a v

Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-25 Thread Jennifer Bramen
Freesurfer support list Date: Friday, February 25, 2022 at 10:25 AM To: "freesurfer@nmr.mgh.harvard.edu" Subject: Re: [Freesurfer] PetSurfer: subcortical volume-based analysis Are you doing an ROI analysis or a voxel-wise analysis? If an ROI analysis, then use mri_gtmpvc (with or withou

Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-25 Thread Douglas N. Greve
behalf of "Douglas N. Greve" *Reply-To: *Freesurfer support list *Date: *Tuesday, February 22, 2022 at 3:00 PM *To: *"freesurfer@nmr.mgh.harvard.edu" *Subject: *Re: [Freesurfer] PetSurfer: subcortical volume-based analysis I don't understand. What mask? On 2/22/2

Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-24 Thread Jennifer Bramen
Fax: 310-315-4069 From: on behalf of "Douglas N. Greve" Reply-To: Freesurfer support list Date: Tuesday, February 22, 2022 at 3:00 PM To: "freesurfer@nmr.mgh.harvard.edu" Subject: Re: [Freesurfer] PetSurfer: subcortical volume-based analysis I don't understan

Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-22 Thread Douglas N. Greve
harvard.edu *Subject:* Re: [Freesurfer] PetSurfer: subcortical volume-based analysis The GTM gives you values for each ROI regardless of whether it is GM, WM, or CSF. They will probably give you similar answers, but the GTM will be more robust. On 2/21/2022 8:48 PM, Jennifer Bramen wrote:  

Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-22 Thread Jennifer Bramen
kef> From: freesurfer-boun...@nmr.mgh.harvard.edu on behalf of Douglas N. Greve Sent: Monday, February 21, 2022 7:13:39 PM To: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] PetSurfer: subcortical volume-based analysis The GTM gives you values for each ROI regardl

Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-21 Thread Douglas N. Greve
behalf of "Douglas N. Greve" *Reply-To: *Freesurfer support list *Date: *Monday, February 21, 2022 at 2:02 PM *To: *"freesurfer@nmr.mgh.harvard.edu" *Subject: *Re: [Freesurfer] PetSurfer: subcortical volume-based analysis You need to first map your pet to the anatomical spa

Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-21 Thread Jennifer Bramen
St. #150 Santa Monica, CA 90404 Phone: 310-525-0865 | Fax: 310-315-4069 From: on behalf of "Douglas N. Greve" Reply-To: Freesurfer support list Date: Monday, February 21, 2022 at 2:02 PM To: "freesurfer@nmr.mgh.harvard.edu" Subject: Re: [Freesurfer] PetSurfer: subcortic

Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-21 Thread Douglas N. Greve
St. #150 Santa Monica, CA 90404 *Phone:* 310-525-0865  | *Fax: *310-315-4069 *From: * on behalf of "Douglas N. Greve" *Reply-To: *Freesurfer support list *Date: *Wednesday, February 16, 2022 at 7:30 AM *To: *"freesurfer@nmr.mgh.harvard.edu" *Subject: *Re: [Freesurfer] PetSur

Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-21 Thread Jennifer Bramen
-525-0865 | Fax: 310-315-4069 From: on behalf of "Douglas N. Greve" Reply-To: Freesurfer support list Date: Wednesday, February 16, 2022 at 7:30 AM To: "freesurfer@nmr.mgh.harvard.edu" Subject: Re: [Freesurfer] PetSurfer: subcortical volume-based analysis If you want to do a

Re: [Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-16 Thread Douglas N. Greve
If you want to do an ROI analysis using FS-based ROIs, you should do that at the individual level. Resample the PET to the anatoimical space, then run mri_segstats passing the PET with --i and using --seg to spec the segmentation. If you really want to do it in MNI305 space, then it is the same

[Freesurfer] PetSurfer: subcortical volume-based analysis

2022-02-14 Thread Jennifer Bramen
External Email - Use Caution Dear Freesurfer Developers I am doing an ROI--based amyloid PET scan analysis. I have completed all of the steps from the PetSurfer wiki. I now have the preprocessed, averaged, resampled, smoothed PET data in MNI305 space which is constrained to the