Robust Large Field-Of-View Water Selective Imaging at 3T with Parallel Transmission

Shaihan J. Malik¹, David J. Larkman¹, Jo V. Hajnal¹

Spectral fat suppressed or water selective imaging (e.g. using 1331 binomial pulses) is difficult to achieve for large fields-of-view particularly at higher field because of problems in achieving a high-quality shim of the static B0 field. We demonstrate that control of the B1 fields facilitated by parallel transmission technology can be used to improve spectrally selective excitation performance (in both pass and stop bands) over a large field of view, by optimising the relative amplitude and phase of individual sub-pulses.