High-definition CT Gemstone spectral imaging of the brain: initial results of selecting optimal monochromatic image for beam-hardening artifacts and image noise reduction.

@article{Lin2011HighdefinitionCG,
  title={High-definition CT Gemstone spectral imaging of the brain: initial results of selecting optimal monochromatic image for beam-hardening artifacts and image noise reduction.},
  author={Xiao Zhu Lin and Fei Miao and Jian Ying Li and Hai Dong and Yun Shen and Ke Chen},
  journal={Journal of computer assisted tomography},
  year={2011},
  volume={35 2},
  pages={294-7}
}
OBJECTIVE The purpose of this study was to select the optimal monochromatic level for gemstone spectral imaging (GSI) to minimize both the image noise and beam-hardening artifacts (BHAs) in nonenhanced cranial computed tomography (CT). MATERIALS AND METHODS One hundred subjects scanned with GSI mode on Discovery CT750HD were enrolled. Six sets of CT images were obtained from a single GSI acquisition: conventional 140 kilovolt (peak) (kV[p]) polychromatic images and 5 sets of monochromatic… CONTINUE READING
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