Abstract #0864
Resting-State fMRI with 3 rd -Order Dynamic Shim Updating (DSU) and Dynamic F 0 Determination
Ariane Fillmer 1 , Milan Scheidegger 1,2 , Signe Johanna Vannesjo 1 , Matteo Pavan 1 , Klaas Paul Pruessmann 1 , and Anke Henning 1,3
1
Institute for Biomedical Engineering,
University and ETH Zurich, Zurich, ZH, Switzerland,
2
Clinic
of Affective Disorders and General Psychiatry,
University Hospital of Psychiatry Zurich, Zurich,
Switzerland,
3
Max
Planck Institute for Biological Cybernetics, Tuebingen,
Germany
EPI, the work horse of fMRI, is prone to artifacts,
induced by B0 inhomogeneities. Therefore, sophisticated
B0 shimming techniques are required. A promising, but
technically demanding approach for B0 shimming is
dynamic shim updating (DSU). The application of DSU to
fMRI is, however, only feasible, if an accurate
pre-emphasis calibration for eddy current correction
(ECC) is implemented. This work presents the first
report of resting-state fMRI data, acquired with a
3rd-order dynamically updated B0 shim along with a
dynamic F0 determination.
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