Re: [Freesurfer] Absolute volume difference between Freesurfer 6.0 and 7.1

2021-03-16 Thread Douglas N. Greve
I'm not sure where the differences are coming from, but it sounds like the range we are seeing. My guess is that the intensity normalization changes are the cause. There are always voxels on the edge of a structure that are ambiguous, and a slight change in intensity can cause their segmentatio

[Freesurfer] Absolute volume difference between Freesurfer 6.0 and 7.1

2021-03-10 Thread Lee, Sang Hoon
External Email - Use Caution I recently installed version 7.1, and I compared absolute volumes with version 6.0, and I realized that there are some significant differences in some brain structures (e.g. Hippocampus and amygdala). In some cases, the differences are more than 7%-

[Freesurfer] Absolute volume difference between Freesurfer 6.0 and 7.1

2021-03-10 Thread Lee, Sang Hoon
External Email - Use Caution I recently installed version 7.1, and I compared absolute volumes with version 6.0, and I realized that there are some significant differences in some brain structures (e.g. Hippocampus and amygdala). In some cases, the differences are more than 7%-