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Abstract #4217

MR Neurography using Robust Fat and Blood Suppressed Volumetric T2-Weighted Imaging

Xinzeng Wang 1 , Crystal E Harrison 1 , Yogesh K Mariappan 2 , Karthik Gopalakrishnan 2 , Avneesh Chhabra 1,3 , Robert E Lenkinski 1,3 , and Ananth J Madhuranthakam 1,3

1 Radiology, UT Southwestern Medical Center, Dallas, Texas, United States, 2 Philips Innovation Campus, Philips Healthcare, Bangalore, Karnataka, India, 3 Advanced Imaging Research Center, UT Southwestern Medical Center, Dallas, Texas, United States

The visualization of nerves on MRI are often confounded by surrounding fat and the blood vessels in close proximity that appear bright on T2-weighted images. Fat suppression by STIR suffers from reduced SNR and standard motion sensitized driven equilibrium (MSDE) based blood suppression suffers from B0 and B1 inhomogeneities, particularly in difficult areas such as Brachial Plexus. In this work, we implemented an adiabatic pulse (BIR-4) based MSDE in combination with a dual-echo 2-point Dixon technique with robust fat and blood suppression without SNR penalty for volumetric neurography in clinically feasible scan times.

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