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Hi there,

I wonder if its somehow possible to feed FreeSurfer's recon-all with pre-existing segmented maps (based on prior segmentation procedure e.g. SPM or ANTs) to "improve" FreeSurfer results. 

For some images I am working with the FreeSurfer's WM segmentation output is not optimal so I am looking for alternatives to improve the final results on such specific cases without requiring any manual intervention. 

Any comments, examples or shared reflections on this regard are kindly welcome. 

Thanks in advance,
Jordi Huguet