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Abstract #2885

Ghost and Distortion Correction in DW-EPI using Phase Labeling Approach

Victor B. Xie 1,2 and Ed X. Wu 1,2

1 The University of Hong Kong, Laboratory of Biomedical Imaging and Signal Processing, Hong Kong SAR, China, 2 The University of Hong Kong, Department of Electrical and Electronic Engineering, Hong Kong SAR, China

Diffusion weighted (DW) images acquired with EPI sequence are prone to Nyquist ghost and geometric distortion. In this work, we applied a new phase labeling scheme we recently proposed to simultaneously correct both artifacts in DWI images. The artifacts in resultant phantom images are largely corrected, demonstrating that the proposed method can effectively remove both Nyquist ghost and geometric distortion in the DW-EPI images through a phase lebeling acquisition and post-processing.

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