Markerless lung tumor tracking and trajectory reconstruction using rotational cone-beam projections: a feasibility study.

@article{Lewis2010MarkerlessLT,
  title={Markerless lung tumor tracking and trajectory reconstruction using rotational cone-beam projections: a feasibility study.},
  author={John H. Lewis and Ruijiang Li and William T Watkins and Joshua Lawson and William Paul Segars and Laura Cervino and William Y. Song and Steve B. Jiang},
  journal={Physics in medicine and biology},
  year={2010},
  volume={55 9},
  pages={2505-22}
}
Algorithms for direct tumor tracking in rotational cone-beam projections and for reconstruction of phase-binned 3D tumor trajectories were developed. The feasibility of the algorithm was demonstrated on a digital phantom, a physical phantom and two patients. Tracking results were obtained by comparing reference templates generated from 4DCT to rotational cone-beam projections. The 95th percentile absolute errors (e(95)) in phantom tracking results did not exceed 1.7 mm in either imager… CONTINUE READING

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