Hi Antonella, The volume given by the hippocampal subfield tool is in .5x.5x.5 voxels. Therefore, to convert to cubic millimeters, you need to divide by 8. Regarding the sufield <-> A/P question, the only correpondance is "Left-Hippocampus" <-> left tail and "Right-Hippocampus"<->right tail Cheers, /Eugenio

On Tue, 2012-12-04 at 08:22 -0800, Antonella Kis wrote:

Dear FS team,

I would like to know which subfield ( left_presubiculum, left_CA1, left_CA2-3, left_fimbria, left_subiculum, left_CA4-DG, left_hippocampal_fissure) contribute to the head, body and tail of left hippocampus.

It also seems that the first column of nonPartialVolumeStatsLeft.txt file contains the total volume of the left hippoccampus but based on the numbers (I copied them below) the total volume is smaller than the volume of some of teh subfileds. How this is possible?

volume_in_number_of_voxels Left-Hippocampus left_presubiculum left_CA1 left_CA2-3 left_fimbria left_subiculum left_CA4-DG left_hippocampal_fissure C23 1681.2 2564.29 1405.07 3814.14 211.792 2983.06 2118.63 422.786

Thank you. Antonella

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