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Abstract #1650

Shaped Fat Saturation with 2D Spatially Selective Multi-Frequency RF Pulse Design in Parallel Transmission

Rainer Schneider 1,2 , Jens Haueisen 2 , and Josef Pfeuffer 1

1 MR Application Development, Siemens Healthcare, Erlangen, Bavaria, Germany, 2 Institute of Biomedical Engineering and Informatics, TU Ilmenau, Ilmenau, Thuringia, Germany

Shaped fat saturation was realized for the first time on the basis of multi-frequency optimization of multidimensional spatially selective RF pulses in parallel transmission. Shaped fat saturation pulses were optimized based on a target-driven variable-density 2D spiral trajectory and evaluated in phantom and human in-vivo experiments and compared to the commonly used Gaussian FATSAT pulse. The fat saturation performance of the proposed RF pulses was found to be similar to the FATSAT pulse, but allowed also for the simultaneous saturation of other frequency bands. Furthermore, less interference with the water band was observed.

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