Abstract #0769

Double Echo Steady State (DESS) Cones for Motion-Robust Steady-State Diffusion-Weighted Imaging

Catherine J Moran¹, Joseph Y Cheng¹, Christopher M Sandino², Marcus T Alley¹, Bruce L Daniel¹, Michael Carl³, and Brian A Hargreaves¹

¹Radiology, Stanford University, Stanford, CA, United States, ²Electrical Engineering, Stanford University, Stanford, CA, United States, ³Global MR Applications and Workflow, GE Healthcare, San Diego, CA, United States

Diffusion-Weighted Imaging (DWI) has shown potential for oncologic imaging without a contrast injection. However conventional methods are limited by low resolution and distortion. Steady-state DWI methods provide 3D, distortion-free images but are susceptible to motion artifacts. A Double Echo Steady State (DESS) method with a conical k-space trajectory is presented and assessed for motion artifact and diffusion-weighting with a focus on breast cancer imaging.

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