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Hi everyone, I am experiencing a tricky situation in freesurfer. Due to hypo- and hyper-intensity problems I obtained a bad reconstruction and I've been working on it since. My first question is then: do I need to refresh the aseg file after the wm.mgz intensities modifications?
However I also noticed that when I loaded the surface to verify the corrections they were all with a significant offset and this message was printed on the console: Warning: MatrixInverse failed. Did not find any volume info Warning: MatrixInverse failed. Did not find any volume info Warning: MatrixInverse failed. Did not find any volume info Warning: MatrixInverse failed. Did not find any volume info
Together with that, I was also unable to obtain the final parcellization, possibly due to the absence of correlation between the volumes and surfaces. I already tried to manually adjust the offset and relaunch the reconstruction, as suggested in the Freesurfer documentation for tailarach errors, but it looks like it did nothing to it.
If you need any file or info to examine the situation further, feel free to contact me, I would really appreciate your help. Thanks in advance, Tommaso Mariani