can you tell us the details of the acquisition? The contrast is
intrinsic, and it has to be sufficient for g/w segmentation.
On Wed, 14 Feb
2007, Anil Roy wrote:
Nick,
The files were acquired axially(120 slices) on a GE scanner. These scans are
a couple of years old. I should also inform you that I converted the orginal
120 slices into afni brik format (afni was able to read them) and then used
mri_convert to convert the BRIK to cor. Freesurfer then used this cor to run
the recon-all pipeline.
The original files could not be read by Freesurfer which is why I did that.
Also, this may be obvious to you but cannot the contrast be simply changed
by Freesurfer. In tkmedit, the brightness and contrast can be adjusted so
isn't there a way that recon-all can use this change while running the
brain.
Thanks - Anil
On 2/14/07, Nick Schmansky <[EMAIL PROTECTED]> wrote:
Anil,
The image has almost no contrast. I've attached a TIFF of one slice.
How was this acquired? Bruce, any idea why it would be so white?
Nick
On Wed, 2007-02-14 at 16:10 -0500, [EMAIL PROTECTED] wrote:
> The following files have been uploaded to the Martinos Center FileDrop
site
> by Anil Roy for you to download:
>
> (1) orig.mgz
>
>
>
> These files will expire in 30 days.
>
> To view or download these files, go in your web browser to:
>
>
https://www.nmr.mgh.harvard.edu/facility/filedrop/showgroup/5010/426/7389dc72a7ad03d19b7736c8a7adff69
>
> DO NOT SHARE this web address with anyone else. It is your personal
access key to the files.
>
> Overall Comment about files from Anil Roy:
>
> Hi,
>
> Attached is the orig.mgz file for the subject that quits at the
watershed step.
>
> Thanks,
>
> Anil.
>
>
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