Hi Sal,
yes, the label hippocampus corresponds to the tail.
The units for the segmentation are voxels of the subfield segmentation. Since these voxels are cubes with a .5mm side, you need to divide the volumes by 8 to convert to cubic mm.
Cheers,
/Eugenio

On 08/12/2013 09:13 PM, Salil Soman wrote:

Hi,

I just wanted to confirm that label "hippocampus" in the hippocampal subfields segmentation is simply parts of the hippocampus that do not fall into one of the other major categories? Also, where can I find the units for the hippocampal subfields? I am seeing some discrepancy between the left and right hippocampal volumes generated by freesurfer and the summed areas generated by the hippocampal subfield analysis.

Thank you,

-Sal
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Juan Eugenio Iglesias, PhD
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iglesias@nmr.mgh.harvard.edu
Athinoula A. Martinos Center for Biomedical Imaging
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