Hello,
<br>
<br>After completing the FreeSurfer Recommended Reconstruction, we have 
noticed that in aparc+aseg, many subjects exhibit small clusters of 
voxels in the medial temporal lobe that are labeled as &quot;ctx-lh-unknown&quot; 
or &quot;ctx-rh-unknown&quot;. These clusters are mostly found on the boundaries 
between the amygdala, hippocampus, inferior lateral ventricles, and 
cerebral white matter. Please refer to the attached screen shot for an 
example.
<br>
<br>How can we deal with this problem? One possible solution that we thought 
of was to apply the corresponding label in aseg.mgz for each affected 
voxel in aparc+aseg.mgz, but we thought we would ask if there is a 
better way.
<br>
<br>Thank you,
<br>Nikhil Chandra