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Correction for Geometric Distortion in Echo Planar Images


We have developed a variational image-based approach to correct the susceptibility artifacts in the alignment of diffusion weighted and structural MRI.The correction is formulated as an optimization of a penalty that captures the intensity difference between the jacobian corrected EPI baseline images and a corresponding T2-weighted structural image.

Coronal slice from a fieldmap corrected EPI (left). The same slice using proposed correction method (right).

Key Investigators

  • Utah: Ran Tao, Tom Fletcher, Samuel Gerber, Ross Whitaker


In Press

R Tao, P T Fletcher, S Gerber, R Whitaker, A Variational Image-Based Approach to the Correction of Susceptibility Artifacts in the Alignment of Diffusion Weighted and Structural MRI, IPMI 2009