Did that error happen before you did anything to the volume? Can you
give a list of commands you used to get to that point? What do you mean
by offset?
On 3/10/2025 4:23 AM, Tommaso Mariani wrote:
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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
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