Exploring RSA Ultimate Accuracy by Using Computer Synthetic Images
In this study, the ultimate accuracy of an RadioStereometric Analysis system was explored by computer synthetic images. Comparing computer synthetic images with joint phantom images, the correlation between RSA accuracy and image noise was revealed. Our study indicates that RSA has ultimate accuracies of 0 (± 1) μm, 0 (± 1) μm and 0 (± 4) μm along the X-, Y- and Z-axis, respectively, far more accurate than the phantom images with accuracies of 5 (± 38) μm, 6 (± 44) μm and 13 (± 76) μm.
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- 1.Selvik, G.: Roentgen stereophotogrammetry, A method for the study of the kinematics of the skeletal system. Acta Orthop. Scand. Suppl. 232, 1–51 (1989)Google Scholar
- 2.Kärrholm, J., Herberts, P., Hultmark, P., Malchau, H.: Radiostereometry of hip prostheses, Review of methodology and clinical results. Clin. Orthop. 344, 94–110 (1997)Google Scholar
- 3.Ryd, L.: Micromotion in knee arthroplasty, A roentgen stereophotogrammetric analysis of tibial component fixation. Acta Orthop. Scand. Suppl. 220, 1–80 (1986)Google Scholar
- 5.Yuan, X., Patel, J., McCalden, R.W., MacDonald, S.J.: Accuracy and Precision of Digital RSA Related to Image Quality. J. of Arthroplasty (2002) (submitted)Google Scholar
- 7.Bragdon, C.R., Estok, D., Malchau, H., Kärrholm, J. In: vitro Comparison of Two Different Radiostereometric Analysis (RSA) Methods in the Determination of Femoral Head Penetration into Polyethylene in a Total Hip Replacement Phantom while using Digital Radiography (2002)Google Scholar
- 14.Lundberg, A., Bylund, C., Selvik, G., Winson, I.G.: Accuracy of Roentgen Stereophotogrammetric Analysis in Joint Kinematics. Eur. J. Exp. Musculoskel. Res. 1, 213–216 (1992)Google Scholar
- 15.Resch, S., Ryd, L., Stenstrom, A., Yuan, X.: Measurement of the forefoot with roentgen stereophotogrammetry in hallux valgus surgery. Foot Ankle Int. 16, 271–276 (1995)Google Scholar