Hi to all,
In our last analysis, among 12 subjects after "-stage 1" and "-stage 2" we got only 3 reasonable brain surfaces. Most of the other brains have a very odd shape: -pieces of skull -coharse lack of cortex -holes -bridges -bad cutting planes -cerebellar attachments It seems to be a segmentation problem. How to solve some of these problems is clearly explained in the 'FreesurferGuide' but the whole analysis seems to be "too much affected"!
I have to fix those errors manually? Can repeat the -stage 1 changing some parameters in the intensity normalization and/or segmentation process? I attach some examples (small jpg files)
Thank you in advance.
Cheers Francesco Musso
Laboratory of Molecular Neuroimaging & Electrophysiology, Department of Psychiatry, Johannes Gutenberg-University, Mainz, Germany
