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Abstract #0370

Extended Multi-Flip-Angle Approach: A 3D B1unit+ Mapping Method for Inhomogeneous Fields

Hans Weber1, Dominik Paul1, Maxim Zaitsev1, Jrgen Hennig1, Dominik von Elverfeldt1

1Dept. of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany

Comprehensive characterization of an RF resonator is given by a quantitative and spatial analysis of its magnetic field produced per unit current (B1unit+). In this study, we present an extension of the multi-flip-angle approach which allows mapping of inhomogeneous B1unit+ fields in three dimensions over a large dynamic range. To demonstrate its superiority over the commonly-used conventional double-angle method, a comparison between both is given.