A method for volumetric imaging in radiotherapy using single x-ray projection.

  title={A method for volumetric imaging in radiotherapy using single x-ray projection.},
  author={Yuan Xu and Hao Yan and Luo Ouyang and Jing Wang and Linghong Zhou and Laura I. Cervino and Steve B. Jiang and Xun Jia},
  journal={Medical physics},
  volume={42 5},
PURPOSE It is an intriguing problem to generate an instantaneous volumetric image based on the corresponding x-ray projection. The purpose of this study is to develop a new method to achieve this goal via a sparse learning approach. METHODS To extract motion information hidden in projection images, the authors partitioned a projection image into small rectangular patches. The authors utilized a sparse learning method to automatically select patches that have a high correlation with principal… 

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