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Abstract #0107

Two-Dimensional Multiband Diffusion Weighted Imaging

Valentina Taviani 1 , Suchandrima Banerjee 2 , Bruce L. Daniel 1 , Shreyas S. Vasanawala 1 , and Brian A. Hargreaves 1

1 Radiology, Stanford University, Stanford, CA, United States, 2 Global Applied Science Laboratory, GE Healthcare, Menlo Park, CA, United States

A novel multiband technique for high resolution diffusion weighted imaging is demonstrated in the breast of a healthy volunteer. The proposed method uses a phase-modulated 2D RF pulse that simultaneously excites multiple co-planar bands of magnetisation in conjunction with a refocusing pulse with multiband slice selectivity. Reduced FOV encoding (i.e. in-plane acceleration) and a generalised parallel imaging reconstruction technique based on the complementarity between coil sensitivities and excitation profiles are used to obtain high-resolution diffusion weighted images with limited distortion.

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