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Abstract #1609

Iterative Denoising of Undersampled PROPELLER Diffusion-Weighted Imaging near Metal Implants

Sampada Bhave1, S. Shivram Kaushik2, and Kevin M Koch1

1Medical College Wisconsin, Milwaukee, WI, United States, 2GE Healthcare

Diffusion weighted imaging is widely used in musculoskeletal MR imaging. Current implementations of diffusion-weighted imaging include the use of PROPELLER DUO imaging sequence and multi-spectral MRI imaging techniques. However, these implementations are restricted by long acquisition times. In this work we propose to an approach to undersample the blades in a uniform fashion and denoise the reconstructed image using total variation based denoising approach. This approach provides acceptable results up to an acceleration factor of 3 and reduces the scan time. This reduction in scan time can be used to acquire multiple slices within clinically feasible scan times.

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