Abstract #2287

Diffusion Tensor Imaging for Peripheral Nerves in the Upper Extremities using Realtime B0 Correction & Image based Distortion Correction: A feasibility study

Maggie Mei Kei Fung¹, Ek Tsoon Tan², David Soon Yiew Sia³, and Darryl Sneag³

¹MR Apps & Workflow, GE Healthcare, New York, NY, United States, ²MR, GE Global Research Center, Niskayuna, NY, United States, ³MRI Research Lab, Hospital of Special Surgery, New York, NY, United States

Diffusion tensor imaging (DTI) can potentially be helpful in visualizing peripheral nerves and assessing nerve damages. However, upper extremity DTIs (wrist, elbows & arm) are susceptible to distortion and fat suppression failure, especially in arms-down position where the area of interest is far from iso-center and can have more B0 inhomogeneity. In this study, we aim to investigate whether a combination of B0 correction methods can help reduce fat suppression failure, improve spatial misalignment and thus improve nerve tracking. We observed consistent fat suppression improvement at the wrist, but no significant improvement in spatial accuracy.

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