Hi Panos
sorry, I think this is pretty far outside our expertise, and it would be hard in any case to try to figure out what happened to give you these strange looking results. I certainly don't have any insight
sorry, Bruce On Wed, 17 Jul 2013, Fotiadis, Panagiotis wrote:
Hi FS Community,
I was wondering whether anyone had a chance to look into this. Thanks again for your time!
Best, Panos ________________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edu [freesurfer-bounces@nmr.mgh.harvard.edu] on behalf of Fotiadis, Panagiotis Sent: Tuesday, July 16, 2013 2:00 PM To: freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] SWI acquisition question
Hi FreeSurfer community,
I am analyzing some SWI scans of some old subjects. For most of my subjects when a SWI was acquired, the resulting files that I would get would be a Magnitude image, a Phase image, a mIP image, and the SWI image. However, I have a couple of subjects for whom I get only the mIP and the SWI images, and the SWI image looks more blurry than it's supposed to be. I was wondering:
- Why do I get only the mIP and the SWI images for those subjects and not the magnitude and phase images as well,
- Is it normal for the mIP to look like that? Usually it looks different, and
- Why is the final SWI image more blurry than usual? By looking at the image, I believe that maybe the head coil was not properly connected to the scanner at the time of the acquisition but I don't know whether that would be a sufficient explanation.
I have attached two attachments: One of the resulting mIP and one of the equivalent blurry SWI of the same subject.
Thank you in advance for your help and time!
Best, Panos