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Abstract #4310

Diffusion MRI and fibertracking of brachial plexus to diagnose injury

Nyoman Dana Kurniawan1, Jin Jin2, Clare Berry3, Wei Liu4, Aiman Al-Najjar1, Katie L McMahon5, Tom Lloyd6, Silvia Manzanero7, James Powell8, Michael Schuetz7, Trevor Gervais9, and Paul McEniery9
1Centre for Advanced Imaging, The University of Queensland, St Lucia, Australia, 2Siemens Healthcare, Brisbane, Australia, Brisbane, Australia, 3Metro North Hospital and Health Service, Brisbane, Australia, 4Application Department, Siemens Shenzhen Magnetic Resonance Ltd, Shenzhen, China, 5School of Clinical Sciences, Queensland University of Technology, Brisbane, Australia, 6Department of Radiology, Princess Alexandra Hospital, Brisbane, Australia, 7Jamieson Trauma Institute, Metro North Hospital and Health Service, Brisbane, Australia, 8Orthopaedics Department, Royal Brisbane and Women’s Hospital, Brisbane, Australia, 9Orthopedics Department, Royal Brisbane and Women’s Hospital, Brisbane, Australia

We describe the utility, optimization of a diffusion weighted imaging protocol, and the post-processing for fibertracking reconstruction of the brachial plexus nerve at 3T using a prototype Simultaneous Multi-Slice RESOLVE Diffusion-Weighted Imaging (SMS RESOLVE DWI) sequence. Best tractography profile was obtained for the acquisition acquired at 2.7 mm isotropic 3D resolution, using 7 segmentations, and 30 diffusion encoding directions at b-value of 800 s/mm2, combined with tractography reconstruction using a probabilistic tensor algorithm.

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