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Abstract #0373

Bloch-Siegert Shift B1 Mapping with Multi-Band Excitation

Tiejun Zhao1, Yujuan Zhao2, Anthony DeFranco2, Tamer S. Ibrahim2

1Siemens Healthcare; Siemens Medical Solutions USA, Inc., Pittsburgh, PA, United States; 2University of Pittsburgh, Pittsburgh, PA, United States

Multi-band (MB) excitation for data acquisition was successfully incorporated into the Bloch-Siegert Shift B1 mapping sequence. The B1 maps from the MB excitation were validated against the conventional Bloch-Siegert data acquisition and were found to be highly comparable with conventional Bloch-Siegert method. The SAR reduction with a factor of two and the slice coverage increased by three folds were demonstrated with the MB methods.