Hi all,
I am preprocessing a dataset using fmriprep v24.0.1, we have B0 fieldmaps (2 magnitudes and 2 phases) for each BOLD run and are trying to use this to correct for field inhomogeneity.
Below are some examples of pre/post-correction images, I’d like to have some feedback on whether the distortion correction looks good or not. I am especially concerned about what looks like a loss of signal toward the back of the brain as well as strange distortions in frontal areas.
Many thanks
example 1 - uncorrected
example 1 - corrected
example 2 - uncorrected
example 2 - corrected
example 3 - uncorrected
example 3 - corrected
