Dear Freesurfer group,

When looking through the log after running recon-all, i have noticed two different errors in the logs. The one being about 'volumes differ in acquisition parameters' and the other 'Image geometries differ across time, maybe due to aquisition changes?'.

Volumes differ in acquisition parameters
v1acq fa=0.000000 tr=10.032000 te=0.000000 ti=0.000000
v2acq fa=0.000000 tr=10.012000 te=0.000000 ti=0.000000
WARNING: Image geometries differ across time, maybe due to aquisition changes?
This can potentially bias a longitudinal study! Will continue in 10s.

What do the above errors mean and is it something we should be worried about?

Best regards,
Kasper Jessen
MD, PhD Student