Bismuth shielding, organ-based tube current modulation, and global reduction of tube current for dose reduction to the eye at head CT.

@article{Wang2012BismuthSO,
  title={Bismuth shielding, organ-based tube current modulation, and global reduction of tube current for dose reduction to the eye at head CT.},
  author={Jia Lan Wang and Xinhui Duan and Jodie A. Christner and Shuai Leng and Katharine L R Grant and Cynthia H. McCollough},
  journal={Radiology},
  year={2012},
  volume={262 1},
  pages={
          191-8
        }
}
PURPOSE To compare the dose and image quality of three methods for reducing the radiation dose to the eye at head computed tomography (CT): bismuth shielding, organ-based tube current modulation (TCM), and global reduction of the tube current. MATERIALS AND METHODS An anthropomorphic head phantom was scanned under six conditions: (a) without any dose reduction techniques (reference scanning); (b) with one bismuth eye shield; (c) with organ-based TCM; (d) with reduced tube current to yield the… CONTINUE READING

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