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I have a scan where the aseg completely missed the bilateral frontal poles. After learning from the videos I added control points (points that were not 110) in a hope to expand the white matter surface. But after adding control points and rerunning aurorecon, still i do not see anychanges. i have attached a screenshot here. What is the error? Can this be fixed or should I discard it?
[image: Screenshot 2023-01-27 at 3.55.16 PM.png] Dr. Rakshathi Basavaraju (M.D. Psychiatry) Assistant Professor (Department of Health Research-sponsored return-home research fellowship) Principal Investigator - OPCINSS Department of Psychiatry National Institute of Mental Health and Neurosciences (NIMHANS) Bengaluru, Karnataka, India-560029 Phone: +91-9480829898/+91-80-26972156/+91-80-26995320
that looks like it has a lot of artifacts in it. what happened to that image? what resolution is it?
On 1/27/2023 5:35 AM, Rakshathi Basavaraju wrote:
External Email - Use Caution
I have a scan where the aseg completely missed the bilateral frontal poles. After learning from the videos I added control points (points that were not 110) in a hope to expand the white matter surface. But after adding control points and rerunning aurorecon, still i do not see anychanges. i have attached a screenshot here. What is the error? Can this be fixed or should I discard it?
Screenshot 2023-01-27 at 3.55.16 PM.png Dr. Rakshathi Basavaraju (M.D. Psychiatry) Assistant Professor (Department of Health Research-sponsored return-home research fellowship) Principal Investigator - OPCINSS Department of Psychiatry National Institute of Mental Health and Neurosciences (NIMHANS) Bengaluru, Karnataka, India-560029 Phone: +91-9480829898/+91-80-26972156/+91-80-26995320
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Looks like the scanner normalized the intensities of each slice. That is something that can be useful to radiologists (if their PACS can’t do this sort of thing for them), but is always detrimental to research.
Matt.
From: freesurfer-bounces@nmr.mgh.harvard.edu on behalf of "Douglas N. Greve" dgreve@mgh.harvard.edu Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Wednesday, February 1, 2023 at 8:50 AM To: "freesurfer@nmr.mgh.harvard.edu" freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] no change even after adding control points
that looks like it has a lot of artifacts in it. what happened to that image? what resolution is it? On 1/27/2023 5:35 AM, Rakshathi Basavaraju wrote:
External Email - Use Caution I have a scan where the aseg completely missed the bilateral frontal poles. After learning from the videos I added control points (points that were not 110) in a hope to expand the white matter surface. But after adding control points and rerunning aurorecon, still i do not see anychanges. i have attached a screenshot here. What is the error? Can this be fixed or should I discard it?
[cid:image001.png@01D9361C.2EAEEBA0] Dr. Rakshathi Basavaraju (M.D. Psychiatry) Assistant Professor (Department of Health Research-sponsored return-home research fellowship) Principal Investigator - OPCINSS Department of Psychiatry National Institute of Mental Health and Neurosciences (NIMHANS) Bengaluru, Karnataka, India-560029 Phone: +91-9480829898/+91-80-26972156/+91-80-26995320
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Douglas N. Greve -
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Rakshathi Basavaraju