Abstract #3729
Combination of integrated slice-specific dynamic shimming and pixel-wise unwarping of residual EPI distortions
Alto Stemmer 1 and Berthold Kiefer 1
1
Healthcare, Siemens AG, Erlangen, Germany
The acquisition of a field map is integrated into a
diffusion-weighted single shot EPI prototype sequence.
The field information retrieved from the unwrapped and
calibrated field map is used at run time for
slice-specific center frequency update and gradient
offset shimming and during the reconstruction for
pixel-wise unwarping of remaining distortions.
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