Three-dimensional mathematical reconstruction of the spinal shape, based on active contours

Journal of Biomechanics
T HuysmansG Van der Perre

Abstract

To reduce the amount of radiographs needed for patients with a scoliosis, a radiation-free method based on topographic images of the back was developed. An active contour model simulating spinal stiffness has been applied to video rasterstereographic (VRS) data. The aim of the present study is (a) to evaluate the applicability of active contours to improve the accuracy and the reliability of the three-dimensional (3D) spinal midline reconstruction from back surface data and (b) to design a more robust method to detect the spinal midline. To evaluate the reliability and accuracy, the active contour-based method is compared to a conventional procedure, which has been specifically developed for scoliosis; both methods produce a 3D curve of the spinal midline. The frontal projections and surface rotations of these spinal midlines are compared; r.m.s. deviations of 0.9 mm between the frontal curves and 0.4 degrees between the surface rotations were obtained. Applying the active contour-based method does therefore not result in a substantial difference in accuracy to the conventional procedure. As a conclusion the active contour method is a valuable mathematical method that can accurately reconstruct the spinal midline based on back ...Continue Reading

References

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Citations

Feb 28, 2009·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Tomaz VrtovecBostjan Likar
May 22, 2010·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Marcel BetschWalter Rapp
Mar 8, 2012·Computer Methods in Biomechanics and Biomedical Engineering·Luca Di AngeloAndrea Spezzaneve
Oct 4, 2012·Computer Methods in Biomechanics and Biomedical Engineering·K Ben MansourF Marin
Oct 15, 2013·The American Journal of Chinese Medicine·Wei ZhangLiang Liu
Feb 17, 2009·Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia·Jakub KrejciPetr Stepanik
May 23, 2012·Journal of Biomedical Optics·Jakub MichońskiRobert Sitnik
Apr 15, 2011·Computers in Biology and Medicine·Marcel BetschWalter Rapp
Dec 1, 2011·Arthritis Care & Research·Marcel BetschMichael Wild
Dec 19, 2014·Scoliosis·Burkhard Drerup
Aug 4, 2020·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Rongguo YanRong'an Jiang

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