[Freesurfer] Hippocampal Subfield Segmentation

2014-01-14 Thread Germeyan, Sierra (NIH/NINDS) [F]
Hi everyone, In using Van Leemput's -hippo-subfields flag as part of the recon-all script to obtain hippocampal subfield volumes, my lab has determined that larger subfields are more relevant for our purposes clinically/surgically. Is there a way to group the fimbria/CA1/2,3/4,DG/presubiculum/s

[Freesurfer] Post-Surgery Volume Analysis

2013-09-30 Thread Germeyan, Sierra (NIH/NINDS) [F]
Hi all, A couple questions regarding post-surgery scans. 1. Is there a way to run scans of post-surgical brains that takes resections into account and gives more accurate results than "recon-all -all"? 2. Is it possible to obtain resection volumes with FreeSurfer? I tried to do this indirectly

[Freesurfer] Hippocampal Subfield Segmentation

2013-09-30 Thread Germeyan, Sierra (NIH/NINDS) [F]
Hi everyone, After running -hippo-subfields, I converted the voxel output of -hippo-subfields to mm^3 based on the instructions given here: https://mail.nmr.mgh.harvard.edu/pipermail/freesurfer/2013-June/031188.html. Then I summed the volumes for all of the subfields (assuming that this would

[Freesurfer] Post-surgery volumes and hippocampal subfield segmentation

2013-09-25 Thread Germeyan, Sierra (NIH/NINDS) [F]
Hi all, A few questions. 1. Is there a way to run scans of post-surgical brains that takes resections into account and gives more accurate results than "recon-all -all"? 2. Is it possible to obtain resection volumes with FreeSurfer? I tried to do this indirectly by finding the difference betwee