Thanks Bruce and Eugenio,

 Suppose I had two identical images of a subject, but in one image I reduced the contrast of internal lamina while leaving the rest of the image intact...just removing internal intensity differences, but leaving the outer boundary contrast intact.

Would the images result in very different subfield segmentations?

Josh


-
Joshua Lee
Graduate Student
Center for Mind and Brain &
Department of Psychology
University of California, Davis
530.747.3805


On Fri, Jun 7, 2013 at 12:33 PM, Bruce Fischl <fischl@nmr.mgh.harvard.edu> wrote:
Hi Josh

it depends on intensity differences if it can find them as well as boundary/geometry.

cheers
Bruce



On Fri, 7 Jun 2013, Joshua Lee wrote:

I'm trying to understand Leemput's subfield algorithm better as implemented
in Freesurfer. Does the algorithm make use of intensity differences in the
internal hippocampal lamina from the subject's T1 image to warp meshes and
assign subfield probabilities? Or does it depend only on outward boundaries
of the hippocampus and probability priors to determine the inner boundaries
between CAs and dentate gyrus?
-
Josh




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