Retrospective motion correction in diffusion-weighted imaging by using optimum order for measuring diffusion directions

In this work, we proposed that retrospective motion correction of diffusion-weighted images by using the optimum order for measuring diffusion directions is proposed. As for this method, retrospective motion correction is performed by using intermediate mean-diffusivity (MD) maps generated from respective groups of six consecutive DW images. The proposed method can reduce calculation error caused by subject motion in diffusion MRI without the need for additional scan time.

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