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Abstract #3006

Multi-Band Adiabatic Pulses

Edden R, Ouwerkerk R
Kennedy Krieger Institute

Adiabatic inversion pulses are introduced, in which multiple inversion bands are created by summing two or more frequency-shifted adiabatic pulses. Asymmetric hyperpulses or hyperbolic secant pulses were added to create a dual-band inversion pulse with very sharp pass-bands between the inversion bands. The pulses were tested in simulation experiments, and in MR phantom experiments. The pulses had enough B1 insensitivity to be useful in surface coil experiments. Possible applications for this type of pulse are simultaneous suppression of fat and water in 1H-MRS, outer volume signal inversion, or suppression in localized MRS.