Imaging a moving lung tumor with megavoltage cone beam computed tomography.

@article{Gayou2015ImagingAM,
  title={Imaging a moving lung tumor with megavoltage cone beam computed tomography.},
  author={Olivier Gayou and Athanasios Colonias},
  journal={Medical physics},
  year={2015},
  volume={42 5},
  pages={
          2347-53
        }
}
PURPOSE Respiratory motion may affect the accuracy of image guidance of radiation treatment of lung cancer. A cone beam computed tomography (CBCT) image spans several breathing cycles, resulting in a blurred object with a theoretical size equal to the sum of tumor size and breathing motion. However, several factors may affect this theoretical relationship. The objective of this study was to analyze the effect of tumor motion on megavoltage (MV)-CBCT images, by comparing target sizes on… CONTINUE READING
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