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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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