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Meeting Abstract

Resting-State fMRI with 3rd-Order Dynamic Shim Updating (DSU) and Dynamic F0 Determination

MPS-Authors
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Henning,  A
Max Planck Institute for Biological Cybernetics, Max Planck Society;
Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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http://www.ismrm.org/14/program_files/Session68.htm
(Abstract)

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Citation

Fillmer, A., Scheidegger, M., Vannesjo, S., Pavan, M., Pruessmann, K., & Henning, A. (2014). Resting-State fMRI with 3rd-Order Dynamic Shim Updating (DSU) and Dynamic F0 Determination. In Joint Annual Meeting ISMRM-ESMRMB 2014.


Cite as: https://hdl.handle.net/21.11116/0000-0001-33E7-1
Abstract
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.