Re: [Freesurfer] Tracula movement http://www.mail-archive.com/search?l=freesurfer@nmr.mgh.harvard.edu&q=subject:%22Re%5C%3A+%5C%5BFreesurfer%5C%5D+Tracula+movement%22&o=newest
Anastasia Yendiki http://www.mail-archive.com/search?l=freesurfer@nmr.mgh.harvard.edu&q=from:%22Anastasia+Yendiki%22 Mon, 12 Sep 2016 04:24:56 -0700 http://www.mail-archive.com/search?l=freesurfer@nmr.mgh.harvard.edu&q=date:20160912
Hi Lars - This sounds like the subject was trying to climb out of the scanner: 3cm average translational motion and 24% of the slices in the series have drop-out. How do the images look?
a.y
Hi,
I don't have a lot of experience looking at dwi scans, but they don't seem crazy to me. I have attached screenshots of the dwi, FA, and brain_anat_mni images, and the gross anatomy looks fine to me. There are stripes in brain_anat_mni, which I would guess indicate motion..
Thank you!
sincerely yours,
Lars M. Rimol, PhD Senior researcher, Norwegian Advisory Unit for functional MRI Department of Radiology, St. Olav's University hospital, 7006 Trondheim, Norway
You're right that this looks fine. Can you upload the entire DWI series for me here? Nifti is fine. Thanks!
https://gate.nmr.mgh.harvard.edu/filedrop2/
On Mon, 12 Sep 2016, Lars M. Rimol wrote:
Re: [Freesurfer] Tracula movementAnastasia Yendiki Mon, 12 Sep 2016 04:24:56 -0700
Hi Lars - This sounds like the subject was trying to climb out of the scanner: 3cm average translational motion and 24% of the slices in the series have drop-out. How do the images look?
a.y
Hi,
I don't have a lot of experience looking at dwi scans, but they don't seem crazy to me. I have attached screenshots of the dwi, FA, and brain_anat_mni images, and the gross anatomy looks fine to me. There are stripes in brain_anat_mni, which I would guess indicate motion..
Thank you!
sincerely yours,
Lars M. Rimol, PhD Senior researcher, Norwegian Advisory Unit for functional MRI Department of Radiology, St. Olav's University hospital, 7006 Trondheim, Norway
freesurfer@nmr.mgh.harvard.edu