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Hi Bruce,

thanks a lot for your answer. Yes, I will try to do recon-all in the classical way, too. I´ve just wanted to compare other bias-field correction techniques.

Regards Adam

________________________________ Od: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu za uživatele Bruce Fischl fischl@nmr.mgh.harvard.edu Odesláno: sobota 16. listopadu 2019 16:44 Komu: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Předmět: Re: [Freesurfer] bias field correction Freesurfer

Hi Adam

we do multiple different bias corrections - nu_correct, plus two of our own (mri_ca_normalize and mri_normalize). Is there a reason you don't want to just let recon-all run them in the way it usually does?

cheers Bruce On Fri, 15 Nov 2019, Adam Rytina wrote:

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Hello all,

I have an input MR T1w series of images. I want to apply the bias field correction. According to some articles that I´ve read, bias field correction is automatically done in the standard "recon-all". Is that right - in which of 31 stages of recon-all bias filed correction is implemented?

Moreover, I´ve read it´s possible to run "nu_correct" - does it perform also bias field correction? Or does it perform only intensity inhomogenity?

Thanks a lot Adam