Hi Arsenije,

You should never need to add hundreds of control points, just a few dispersed through the problematic area should work. Would you mind uploading your recon to our file drop site and I'll take a look at it? You can send it to my email, eboyd2@nmr.mgh.harvard.edu.

https://gate.nmr.mgh.harvard.edu/filedrop2/

Thanks,

Emma

________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Arsenije Subotic arsenije.subotic1@ucalgary.ca Sent: Thursday, February 1, 2018 5:54:20 PM To: freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] Control Points Not Working

Dear experts,

I’m currently performing quality control for my data, and most of my issues so far have been that in many cases adding control points has not been able to extend the white surface. I’ve also noticed that most of the regions where I have needed to add CPs are in the parietal regions of the brain. Does anyone know how many control points are usually recommended to be added? I have so far had cases where I have had to add hundreds of CPs and I have still had mixed success.

Thank you, Arsenije

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