Re: [Freesurfer] hippocampal segmentation converting mgz to nii

2012-12-07 Thread Koen Van Leemput
Hi Lorenzo, The correct way to calculate the expected (not an integer value) number of voxels belonging to a subfield is by summing ( intensity / 255 ) across all voxels. Not sure where things go wrong: the integer values you report are a bit suspicious, or perhaps some rescaling of image

[Freesurfer] hippocampal segmentation converting mgz to nii

2012-11-28 Thread lorenzo pasquini
Dear freesurfer users, I have used freesurfer to segment hippocampal subfields. Then I used freeview to convert the derived .mgz files in .nii files for further analysis. I estimated the hippocampal subfields volumes with the command: kvlQuantifyPosteriorProbabilityImages $ FREESURFER_HOME/