Evaluation of deformable image registration and a motion model in CT images with limited features.

@article{Liu2012EvaluationOD,
  title={Evaluation of deformable image registration and a motion model in CT images with limited features.},
  author={Fan Liu and Yue-Houng Hu and Qinghui Zhang and Rex K. Kincaid and Karyn A. Goodman and Gig S. Mageras},
  journal={Physics in medicine and biology},
  year={2012},
  volume={57 9},
  pages={2539-54}
}
Deformable image registration (DIR) is increasingly used in radiotherapy applications and provides the basis for a previously described model of patient-specific respiratory motion. We examine the accuracy of a DIR algorithm and a motion model with respiration-correlated CT (RCCT) images of software phantom with known displacement fields, physical deformable abdominal phantom with implanted fiducials in the liver and small liver structures in patient images. The motion model is derived from a… CONTINUE READING
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