I don't have any good suggestions at the moment, other than maybe try
Christian Gaser's toolbox to see if this handles the data better. I
suspect that it might, as its final segmentation relies less heavily
on the tissue probability maps.
On 9 May 2011 10:37, Moeller, C. <[log in to unmask]> wrote:
> Dear SPM experts,
> I am doing VBM analysis on scans of AD patients and healthy controls. I
> just finished the segmentation and found a lot of inaccurate
> segmentations, especially in scans with a lot of atrophy. I attached a
> screenshot of the segmentation for illustration of the problem. It seems
> as if the space between the cortex and the dura is also segmented as
> gray matter. I used 'New Segment' of SPM8.
> Does anyone have an idea why this happens and how I can solve this
> Another issue is, that often the dura around the brain is also segmented
> as gray matter. In the older version of the 'Segment' step there was a
> 'Clean up' option. Does anyone know how to solve this in the 'New
> Segment' step of SPM?
> Thanks in advance.
> Best regards,