Hello Freesurfer team,

 

I have just become aware of the release notes concerning v7.0.0 being recalled and not to be used, with the recommendation to use v7.1.0 instead:

https://surfer.nmr.mgh.harvard.edu/fswiki/ReleaseNotes

 

I have a couple of questions about the implications of this recall.

 

We have processed a large dataset using freesurfer version 6, with all subjects being processed (recon-all) with the same version/platform.

 

We would now like to segment the hippocampal subfields using the enhanced version of the module as outlined here: https://surfer.nmr.mgh.harvard.edu/fswiki/HippocampalSubfields   which requires Freesurfer 7.

 

We have successfully run the hippocampal segmentation using freesurfer_v7.0.0_dev_20200405 (7.1 was not available at the time).

 

My questions:

 

1. Given the recall of v7.0.0, does this mean that we should re-do the hippocampal segmentation that used v7.0.0  with v7.1.0? In other words, are all functions within v7.0.0  to be avoided, or just the recon-all stream?

 

2. Given that the recon-all was processed with v6, is it ok to perform the hippocampal subfield segmentation with v7? I understand that it is fine to perform post-processing functions outside the recon-all stream with newer versions (provided recon-all was done with the same version). Is my understanding correct?  

 

Thank you for your assistance.

 

- Vanessa