Yes,

see also my answers from 08 and 11 of September on the list.

Best, Martin

The longitudinal pipeline will not overcome (contrast) differences due to scanner differences. If you register the scans to eachother you will see that there are slight differences in WM/GM contrast. Probably better to use the scans from the same scanner and not use the third.

 

 

 

Van: freesurfer-bounces@nmr.mgh.harvard.edu [mailto:freesurfer-bounces@nmr.mgh.harvard.edu] Namens Michelle VanTieghem
Verzonden: zondag 17 september 2017 19:18
Aan: Freesurfer support list
Onderwerp: Re: [Freesurfer] longitudinal freesurfer- different scanners

 

Hi all, 

 

I just wanted to follow up on my question: 

Would it be ok to use the longitudinal pipeline for scans that were acquired on different scanners (e.g time 1 and time 2 on the same scanner, time 3 on different scanner)? Would the longitudinal pipeline help to account for different scanners, since it creates the average base image for all 3 time points? or is this not recommended to use different scanners in longitudinal pipeline?

 

Thanks!

- M

 

On Mon, Sep 4, 2017 at 5:27 PM, Michelle VanTieghem <michelle.vantieghem@gmail.com> wrote:

Hello, 

 

Would it be ok to use the longitudinal pipeline for scans that were acquired on different scanners (e.g time 1 and time 2 on the same scanner, time 3 on different scanner)? Would the longitudinal pipeline help to account for different scanners, since it creates the average base image for all 3 time points? or is this not recommended?

 

Thank you,

Michelle 

 

--

Michelle VanTieghem

PhD student in Psychology

Developmental Affective Neuroscience Lab

Columbia University 

mrv2115@columbia.edu

 

--

Michelle VanTieghem

PhD student in Psychology

Developmental Affective Neuroscience Lab

Columbia University 

mrv2115@columbia.edu

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