[Freesurfer] HBT hippocampal segmentation

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Hello,

I was just asked by a reviewer how the head body and tail of the Freesurfer subfield segmentation is determined. I know that there is no differentiation of the tail, however, there are differentiations between the head and body of the different subfields. Are there specific anatomical boundary rules that drive the algorithm to differentiate between head and body in the HBT segmentation output.

Thank you for any guidance you can provide!

Best, *Daniel Callow* *Graduate Student, Neuroscience and Cognitive Science* Exercise for Brain Health Lab University of Maryland, College Park *ddcc2442@gmail.com ddcc2442@gmail.com* 443-254-6298