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Hi all,

 

I am running Freesurfer 7.3.2 on T1 images (LPI orientation) with 176*256*256 FOV, 1mm isotropic resolution.

 

I saw that the Ants N4 bias correction is done after the FOV is expanded to 256*256*256, not on the original image. Shouldn’t the zeros in the expanded image affect the bias correction?

 

Thanks.

 

Best,

Ruifeng

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