Hello,
I have recently upgraded from running version 4.0.2 of Freesurfer to the most current version (v.5.1.0), and have encountered a problem. I used to be able to expand the recon-all generated white matter volume by a percentage of the grey matter thickness using mris_expand, but ever since changing to the most current version, the mris_expand command is not returning correct results. The command I use is: mris_expand -thickness ./lh.white $1 lh.white.expanded where $1 is a variable indicating the percentage I wish to expand by. Since the version change, mris_expand does not seem to actually change the volume of lh.white, with the output file lh.white.expanded looking identical to lh.white after running the command. This occurs regardless of the value I enter for $1 (be it very large, very small, or even negative) The command appears to run normally as it did in v.4.0.2 and does not give any error message, but the output volume appears unchanged from the input volume. Have the parameters or flags for this command changed between the versions, or has mris_expand been deprecated? If so, what flags or command should I use instead? Thanks, - Andrew
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