Improved Accuracy of Motion and Affine Eddy Current Distortion Correction in High B-Value Diffusion Weighted Imaging Using Brain Mask Based Weighting Functions

Christopher Leslie Adamson¹, Richard Beare¹, Deanne Thompson¹, Marc Seal¹

We present an improved method for correction of affine distortions in high b-value diffusion weighted imaging due to eddy currents and subject movement. We show that our method improves the alignment and scaling of the registration results. The improved registration has implications for DTI and tractography applications.