Characterization, prediction, and correction of geometric distortion in 3 T MR images.

@article{Baldwin2007CharacterizationPA,
  title={Characterization, prediction, and correction of geometric distortion in 3 T MR images.},
  author={Lesley N Baldwin and Keith Wachowicz and Steven D. Thomas and Ryan Rivest and Biagio Gino Fallone},
  journal={Medical physics},
  year={2007},
  volume={34 2},
  pages={388-99}
}
The work presented herein describes our methods and results for predicting, measuring and correcting geometric distortions in a 3 T clinical magnetic resonance (MR) scanner for the purpose of image guidance in radiation treatment planning. Geometric inaccuracies due to both inhomogeneities in the background field and nonlinearities in the applied gradients were easily visualized on the MR images of a regularly structured three-dimensional (3D) grid phantom. From a computed tomography scan, the… CONTINUE READING
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