Hello,
I am trying to verify the wmparc.mgz segmentations. I have identified outlier regions statistically, but then when I load up the wmparc.mgz file to QA visually, I find it is very difficult to QA the white matter regions. The problem is that because there is no contrast in the white matter, it is difficult to decide where one region ends and another one begins. I would like to ask if anybody has any suggestions as to a better way to visually verify the wmparc.mgz file.
Thank you, Jeff
Hi Jeff, there is no such QA. The boundaries are not defined based on T1 intensity. Rather, they are defined based on distance from a given cortical label.
doug
On 12/20/10 8:35 PM, Jeff Sadino wrote:
Hello,
I am trying to verify the wmparc.mgz segmentations. I have identified outlier regions statistically, but then when I load up the wmparc.mgz file to QA visually, I find it is very difficult to QA the white matter regions. The problem is that because there is no contrast in the white matter, it is difficult to decide where one region ends and another one begins. I would like to ask if anybody has any suggestions as to a better way to visually verify the wmparc.mgz file.
Thank you, Jeff
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
freesurfer@nmr.mgh.harvard.edu
-
Douglas Greve -
Jeff Sadino