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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