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Abstract #2539

Fast, whole brain Radial Diffusion Spectrum Imaging (RDSI) via Simultaneous Multi Slice Excitation

Steven Baete 1,2 , Tiejun Zhao 3 , and Fernando Emilio Boada 1,2

1 Center for Advanced Imaging Innovation and Research (CAI2R), NYU School of Medicine, New York, NY, United States, 2 Center for Biomedical Imaging, Dept. of Radiology, NYU School of Medicine, New York, NY, United States, 3 Siemens Healthcare, Siemens Medical Solutions USA, Inc., New York, NY, United States

Diffusion Spectrum Imaging (DSI) has become a powerful tool for non-invasive imaging of white matter brain architecture. Unfortunately, widespread clinical implementation has been hampered by long acquisition times. DSI approaches sampling q-space in a radial fashion have been shown to be more efficient and accurate. When combined with a multi-echo train, RDSI provides significant throughput improvements over conventional DSI. We demonstrate a further acceleration of multi-echo RDSI by extending this technique with Simultaneous Multi-Slice excitation. The combined acceleration allows for whole brain fully sampled RDSI in under 7 min.

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