Hi Rosie

The defects usually come from segmentation errors so I would fix those first

Cheers

Bruce

From: freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edu> On Behalf Of Rosalia Dacosta Aguayo
Sent: Saturday, June 26, 2021 2:49 PM
To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Subject: Re: [Freesurfer] Topological and control point errors

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Hi Bruce,

Sorry, I refer to topological defects and white mater segmentation errors. What should I correct first?

Kind regards,

Rosie

On Sat, Jun 26, 2021 at 6:25 PM Fischl, Bruce <BFISCHL@mgh.harvard.edu> wrote:

Hi Rosie

I’m not sure what you mean by “control point errors”. The things control points are intended to correct, like B1- shading, can cause topological defects, so adding control points can fix the topology as well

Cheers

Bruce

From: freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edu> On Behalf Of Rosalia Dacosta Aguayo
Sent: Saturday, June 26, 2021 11:39 AM
To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Subject: [Freesurfer] Topological and control point errors

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Dear Freesurfer experts,

I have noticed I have both topological and control point erros in my image.

What would you recommend me to do first, topological or the control points?

Kind regards,

Rosie

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