To calibrate a pre‐emphasis to sufficiently compensate eddy currents for application of dynamic shim updating to fMRI without extension of scan times.
Eddy current effects induced into all shim terms up to third‐order were characterized by spatiotemporal field monitoring, using a third‐order field camera. Pre‐emphasis settings were derived from the measurements and iteratively evaluated...
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.