Roentgen stereophotogrammetric analysis using computer-based image-analysis.

@article{Ostgaard1997RoentgenSA,
  title={Roentgen stereophotogrammetric analysis using computer-based image-analysis.},
  author={Svend Erik Ostgaard and Larry Gottlieb and Soren Toksvig-Larsen and A Lebech and Annie Claire Talbot and Bente Lund},
  journal={Journal of biomechanics},
  year={1997},
  volume={30 9},
  pages={993-5}
}
The two-dimensional position of markers in radiographs for Roentgen Stereophotogrammetric Analysis (RSA) is usually determined using a measuring table. The purpose of this study was to evaluate the reproducibility and the accuracy of a new RSA system using digitized radiographs and image-processing algorithms to determine the marker position in the radiographs. Four double-RSA examinations of a phantom and 18 RSA examinations from six patients included in different RSA-studies of knee… CONTINUE READING