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Field mapping without reference scan using asymmetric echo-planar techniques
2000
Magnetic Resonance in Medicine
Improvements in B 0 mapping and shimming were achieved by measuring the static field information in multiple subsequent echoes generated by an asymmetric echo-planar readout gradient train. With careful compensation, eddy current effects were shown to affect the adjustment of the shim coils minimally. In addition to reducing the time required for field mapping by two-fold, the sensitivity was simultaneously optimized irrespective of the prevalent T* 2 present, thereby minimizing the error of
doi:10.1002/(sici)1522-2594(200002)43:2<319::aid-mrm22>3.3.co;2-t
fatcat:kfgoz52jpradrh3x7mt2fkhb7y