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Abstract #4505

Selective Composite Adiabatic Refocusing Pulses for 3D RARE Imaging

Ziqi Sun1

1Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA

A compact selective composite adiabatic refocusing pulse with nonlinear phase dispersion compensation capability was developed for 3D RARE imaging. The composite adiabatic pulse consisted of two adiabatic half passage (AHP) pulses with phase reversal in the second AFP pulse. A full echo train and significantly improved signal sensitivity and uniformity were observed using the selective composite adiabatic refocusing pulse in comparison to that of an amplitude-modulated selective refocusing pulse in 3D RARE imaging.