Thank you. Can you also send screenshots of your original DWIs, if they don't look like this?
________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Matthew Grecsek matt@grecsek.com Sent: Friday, September 21, 2018 10:27:37 AM To: Freesurfer support list Subject: Re: [Freesurfer] Freesurfer 6.0 - Tracula - Segmentation fault
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Hi Anastasia,
Please see attached screenshots from dwi.nii.gz. The first 4 are rotated 90 degrees around y axis and the last 2 are top and bottom.
Thanks,
-Matt
On Thu, Sep 20, 2018 at 7:19 PM Yendiki, Anastasia <AYENDIKI@mgh.harvard.edumailto:AYENDIKI@mgh.harvard.edu> wrote:
Hi Matt - I am asking about the raw diffusion images. You sent a screenshot of an FA map that looked truncated, with slices missing from the bottom of the brain (which explains why the error happened for the ILF, which would go through that missing part of the brain). Does dmri/dwi.nii.gz look like that?
Best,
a.y
________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edumailto:freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edumailto:freesurfer-bounces@nmr.mgh.harvard.edu> on behalf of Matthew Grecsek <matt@grecsek.commailto:matt@grecsek.com> Sent: Thursday, September 20, 2018 2:00:11 PM To: Freesurfer support list Subject: Re: [Freesurfer] Freesurfer 6.0 - Tracula - Segmentation fault
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If you are referring to the T1 raw images, no they appear normal and the standard Freesurfer pipeline generates correct volumes.
If you are referring to the DTI raw images off the scanner, they also don't appear to have brain parts missing, although some appear more noisy and pixelated than others.
This is a mTBI subject with no other anatomical brain anomalies scanned with a Siemens 3T.
------------------------------------------------ Re: [Freesurfer] Freesurfer 6.0 - Tracula - Segmentation fault Yendiki, Anastasia Wed, 19 Sep 2018 13:20:02 -0700
Do the raw images look like that too?
From: <freesurfer-boun...@nmr.mgh.harvard.edumailto:freesurfer-boun...@nmr.mgh.harvard.edumailto:freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of Matthew Grecsek <m...@grecsek.commailto:m...@grecsek.commailto:m...@grecsek.com> Reply-To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edumailto:freesurfer@nmr.mgh.harvard.edumailto:freesurfer@nmr.mgh.harvard.edu> Date: Wednesday, September 19, 2018 at 4:07 PM To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edumailto:freesurfer@nmr.mgh.harvard.edumailto:freesurfer@nmr.mgh.harvard.edu> Subject: Re: [Freesurfer] Freesurfer 6.0 - Tracula - Segmentation fault
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Yes, a part of the brain appears missing. See attached screenshot.
I did not use a configuration file, I simply accepted all defaults and kicked off the process with -s and -i flags.
------------------------------------------------ Re: [Freesurfer] Freesurfer 6.0 - Tracula - Segmentation fault Yendiki, Anastasia Wed, 19 Sep 2018 09:02:47 -0700
Hi Matt – It looks like some sort of registration issue. When you display the FA map (dmri/dtifit_FA) and structural segmentation in diffusion space (label/diff/aparc+aseg), do they look fine? Is there any part of the brain that is cut off from any of the images? Also, can you attach your config file? Thanks!
a.y
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