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Schlagwörter:
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Zusammenfassung:
During the last years, a high interest in mapping of the B1-field has led to the development of a large number of techniques. Sequences designed for 2D and 3D acquisitions, based on amplitude or phase information have been presented. For an experimental comparison of these techniques, six different sequences were implemented on animal scanners with field strengths of 7 T and 16.4 T. In a number of phantom
experiments, the behavior of the techniques for different B1-ranges, T1-values and frequency offsets was evaluated.