Hello all,
We have performed multiple task-based fMRI sequences on a subject. Would we need a field map for each fMRI scan if all the scans were taken in a single uninterrupted session?
Thank you,
Kristian
Hi @KGalea and welcome to Neurostars!
There was this answer given in another thread.
For the fMRI protocoles that run on our 3T fMRI research platform, we tend to also use only one fieldmap for all the functional runs when we think that the subject did not move his head too much between runs. If something happens and we need to reshim before the acquisition, we do acquire a new fieldmap.