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Hello freesurfer experts, I previously applied hippocampal subfield segmentation using FS v.6.0. I am now trying to devide subfields into head/body where applicable using FS development version (latest version). However, I encountered the following problems/quesetions: 1) X represents certain subfield (volume)X_head + X_body (from FS dev) ~= X (from FS v.6.0) What possibly causes this volume discrepancy between FS dev and FS v.6.0? Is the head/body segmentation template in FS dev based on the same ex-vivo template as used in FS v.6.0? 2) Related to 1), subfield volume as obtained from FS v.6.0 generally larger than that from FS dev (not for all subfields though) I processed T1 images with FS v.6.0 and then applied hippocampal segmentation with both FS v.6.0 and FS dev. Any suggestions/comments would be greatly appreicated! Thank you for your time and help in advance! Best, Liwen