Re: [Freesurfer] Control points and errors

2012-08-27 Thread Herting, Megan
Hello Bruce, By creating new errors after adding cp, it usually leaves out a large portion of cortex (and its white matter) that was originally correctly identified in the first attempt. I have tried to add cp in areas that are not in partial volume voxels. The version command says I am using: $I

Re: [Freesurfer] Control points and errors

2012-08-25 Thread Bruce Fischl
Hi Megan it's hard for us to diagnose without seeing the details. In general though you have to be careful to make sure that you aren't putting control points in partial volumed voxels. When you say it creates new errors, can you give us some details? Is the wm too bright in those regions? Wha

[Freesurfer] Control points and errors

2012-08-24 Thread Herting, Megan
Hi, I have been using freesurfer on a large dataset and I am having some trouble. Sometimes the temporal lobes are not fully covered, so I will go back to add a few control points based on the recommendations of freesurfer (voxels that are <110 and not next to a gray matter voxel) and send it t