Hi Theo,

- not sure what test you mean. Have a second person correct the data and compare ?

- you can run 1.5. and 3 T data in the longitudinal pipeline, however (similar to cross sectional processing) you will not know if the differences of the results are due to anatomical changes or due to scanner differences.

Best, Martin

On 14. Jun 2017, at 03:27, AKUDJEDU, THEOPHILUS T.AKUDJEDU1@nuigalway.ie wrote:

Hi All,

Is it standard practice to conduct test when corrections are made in freesurfer for subcortical structure volumes?

Also, are you able to analyse data acquired (1.5T - time point one) with time-point two (3T) in the longitudinal pipeline?

Thanks

Theo

From: AKUDJEDU, THEOPHILUS Sent: Tuesday, June 13, 2017 3:19:00 PM To: freesurfer@nmr.mgh.harvard.edu mailto:freesurfer@nmr.mgh.harvard.edu Subject: Longitudinal Pipeline

Hi All,

Is it standard practice to conduct reliability when corrections are made in freesurfer for subcortical structure volumes?

Also, are you able to analyse data acquired (1.5T - time point one) with time-point two (3T) in the longitudinal pipeline?

Thanks

Theo

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