Hi Jorg, can you tell us a little more? A picture would be good. Also, describe how you have done your analysis (eg, on the surface or in the volume, how much smoothing). doug
On 10/15/2012 11:01 AM, Jörg Pfannmöller wrote:
Dear Freesurfers,
I computed the functional activation in a sensory task using freesurfer's fsfast stream. In the cortex surface line like activated regions are present. Their extension is much larger than the extension of the expected regions. Therefore, I suppose that those regions are due to vessels. Is there a possibility in freesurfer to remove them. Ideally there would be something like a volume based mode which does not sxclude the cortex. In this mode the vessels couls be identified and removed. Any help is highly apprexiated.
Respectfully yours
pfannmoe
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