Dear FreeSurfers,

I am trying to run the longitudinal process including (recon-all -base and -long) for 5 different timepoints.

But in my original data one the of five differs in the acquisition orientation and in the size of the field of view, so the results and especially the statistic is distorted.

Four of my data sets have RPI as acquisition Parameter and a FOV of 230,

the last data set has LPI and a FOV of 257.

Does it even make sense to include this last dataset – is it even possible (due to different Parameters)?
Do I have to pre-process this different data set?

 

Thank you in advance!

Sam