Systematic errors in bone-mineral measurements by quantitative computed tomography.

@article{Rao1987SystematicEI,
  title={Systematic errors in bone-mineral measurements by quantitative computed tomography.},
  author={G. Umamaheswara Rao and Issa Yaghmai and Abund Ottokar Wist and Gaurav Arora},
  journal={Medical physics},
  year={1987},
  volume={14 1},
  pages={62-9}
}
Bone-mineral measurements using quantitative computed tomography (QCT) are commonly based on comparisons with solutions in water of known concentrations of K2HPO4. In this paper are described theoretical and experimental studies that have led to the conclusion that large systematic errors can arise in these measurements, depending on the soft-tissue and fat concentrations in the vertebral spongiosa. In the case of single energy scanning, such large errors have been identified to be due to the… CONTINUE READING

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