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Abstract #3532

Validation of a Retrospective Eddy Current Correction Algorithm for Advanced Diffusion MRI

Paul I Dubovan1,2, Jake J Valsamis1,2, and Corey A Baron1,2
1Medical Biophysics, Western University, London, ON, Canada, 2Center for Functional and Metabolic Mapping, Robarts Research Institute, London, ON, Canada

Diffusion MRI (dMRI) suffers from eddy current-induced distortions which affect the quality of reconstructed images. While existing computational techniques such as FSL eddy can correct most eddy-current induced distortions for traditional techniques, their ability to correct more complex techniques such as Oscillating Gradient Spin Echo (OGSE) remains uncertain due to the time-varying behavior of eddy currents not being considered. We propose an algorithm that considers this behavior and compare its correction quality to other methods. For OGSE acquisitions, the technique outperformed other computational methods that treat eddy currents as static, showing its feasibility as a correction tool for advanced dMRI.

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