Abstract #3949

"Universal" non-selective pulse design at 7 Tesla using a birdcage coil and a B0 shim array: Evaluation of kT-points and fully optimized pulses

Bastien Guerin¹, Eugene Milshteyn¹, Yulin Chang², Mads S Vinding³, Mathias Davids¹, Wald L Lawrence¹, and Jason Stockmann¹

¹Massachusetts General Hospital, Charlestown, MA, United States, ²Siemens Medical Solutions, Malvern, PA, United States, ³Center for functionally integrative neuroscience, Aarhus, Denmark

We design “universal” kT-point and fully optimized pulses for flip-angle uniformization in the brain at 7 Tesla using a birdcage coil and a B₀ shim array coil. The fully optimized pulses are RF + gradient and RF + gradient + shim current waveforms joint optimization with system constraints (amplitude, slew-rate and acceleration). We design the universal pulses using 3 subjects’ field maps and evaluate them on 4 additional subjects.

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