Hi Bruce,

Is it better to overestimate than underestimate ? Please find joined this two saggital images (FS v5.3 and FS v6_beta) of brain segmentation. Cerebellum in v6_beta really seems to go outside of its borderlines even if cerebellum in v5.3 is indeed lightly underestimated.

Looking at the cerebral cortex I found the segmentation less "smoothed" in v6_beta (with more irregularities near pial surface) than in v5.3 according to coronal views of segmentations joined.

What do you think about it ?  Would you advise me to go on with the v6_beta anyway ?

Would it be better and coherent to use a more recent "nightly dev builds" of FreeSurfer for future publication ?

Thanks in advance for helping !

Best regards,

Matthieu

2015-12-15 17:38 GMT+01:00 Bruce Fischl <fischl@nmr.mgh.harvard.edu>:
Hi Matthieu

I think 6.0 looks better overall, even in the beta that you have. The 5.3
segmentation looks like it is underestimating cerebellum and hippocampus to
me.

cheers
Bruce


On Tue, 15 Dec 2015, Matthieu Vanhoutte wrote:

> Dear FS's experts,
>
> I have tried the recon-all process on one subject with both FS v5.3 and v6_beta.
>
> Although subcortical structures seems to be better segmented in v6_beta, I find that v6_beta over-segmented some other
> structures as cerebellum, hippocampus, ...
>
> I will attached in the FileDrop my T1.mgz, and aparc.a2009s+aseg.mgz files for both freesurfer versions.
>
> Could you please look at it and tell me what do you think about and advise me ?
>
> Thank you !
>
> Best regards,
> Matthieu
>
>
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