Correcting Geometric Distortions of Echo Planar Imaging Using Demons and Reversed Phase Encoding

Keywords

absolute accuracy achieving acquiring additional aligned allows alter anal anatomical approaches appropriate argued arrows artifacts avoiding back background better bins bone brain brains caused causing choosing coil color competitive consisting contains correct corrected correcting correction cost council danish decreased demons dependence details differ diffusion displaced displacement displays distorted distortions distributions double eddy efficient emphasize encoding estimating existing extend favorable field find five fluid frontal function geometric geometrically gradient histogram implementations important improvements incorporate indicate individual influence inhomogeneity instance intensities intensity introduce isotropic labeled leading local magnitude mask masking minimal modulation multiplying name near numerical outside overlaid particularly performance planar polarity previous prior problem proposed quantifies quantitative registration require resolution reverse reversed reversely rigidly scanned scanner scores sensitive similarly since slice slices smoothed software solution sometimes spacing spin spread squares stability stage start statistical structural structures subject subjects successive suggesting susceptibility technical temporal threshold thresholded toolbox twice undistorted unmasked whole wise worse