Hi Mahinda,
I can take a look if you want to upload a dataset. Please find
the instructions to upload in this wiki.
http://surfer.nmr.mgh.harvard.edu/fswiki/FtpFileExchange
Thanks,
Sita.
On Sat, 25 Feb 2012, Mahinda Yogarajah wrote:
Dear Freesurfer Experts,
Would it be easier to upload
Dear Freesurfer Experts,
Would it be easier to upload a typical example of the data I am trying to
salvage, in order to get some hints on how I might proceed with this
problem of loss of frontal signal drop off ?
Thanks in advance.
Mahinda
On Thu, Feb 23, 2012 at 2:06 AM, Mahinda Yogarajah wro
Hi Bruce and Freesurfer Experts,
I tried the suggestions below in these images but without complete
resolution of the problem - there is an improvement but there is still
stuff missing right at the front (last 3 to 4 slices). Is there anything
else I can try in order to salvage these images ? As
hmmm, could also be a low sensitivity region if the region around the eyes
doesn't have coil coverage. I would try putting a line of control points in
the white matter going from anterior and moving posteriorly until the
drop-off is not that big (i.e. until the T1.mgz has voxels==110 in the
whi
Hi,
No problem - thanks for coming back to me.
Imaging was carried out with a GE Excite II 3-T scanner using an eight-
channel phased array coil. We acquired coronal 3D-T1 weighted fast spoiled
gradient echo (FSPGR) (0.94 × 0.94 × 1.1 mm) which is what I am plugging
into Freesurfer.
There is act
Hi Mahinda,
sorry, I meant to respond to this. It's hard to tell from the image - is
there actually data in the frontal regions? What is the source of the
drop-off? Is it a slab selective acquisition and is anterior/posterior the
slab direction?
cheers
Bruce
On Mon, 23 Jan 2012, Mahinda Yo
