There is no widely adopted clinical protocol for diffusion weighted imaging near metal since the commonly used EPI trajectory fails completely due to distortion from off-resonance. We combine the magnetization prepared, stimulated echo diffusion preparation with 3D MSI encoding to enable volumetric diffusion weighted imaging near metal in clinically feasible times. Imaging time is reduced by a factor of 2× with high RF bandwidth root-flipped Shinnar-Le Roux refocusing pulses since spectral coverage can be maintained with fewer excitations. Joint design of the excitation and refocusing pulses reduces B1 sensitivity.
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