HI Fahimeh

You need to give us a lot more information. What kind of scans did you acquire? Were they the same across time? Were they on the same scanner? Were any upgrades or similar performed in between the scans. We don’t generally find growth like this in adult populations

Cheers

Bruce

From: freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edu> On Behalf Of fahimeh palizban
Sent: Saturday, December 12, 2020 2:31 AM
To: freesurfer@nmr.mgh.harvard.edu
Subject: [Freesurfer] About volumetry results by Freesurfer

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Hello,

I am a Bioinformatician using Freesurfer for Brain volumetry analysis particularly for clinical usage. I encountered an issue when using Freesurfer for a patient having MRI data at two different time points;

 The volumes related to some brain sites have been increased when comparing with the previous MRI data and it is kind of impossible biologically.

It would be kind of you to inform me of the mentioned problem and its reason.

Thanks for your time and consideration

Best regards

Fahimeh