Abstract
Intervertebral kinematics closely relates to the functionality of the spinal segments. Direct measurement of the intervertebral kinematics in vivo is very problematic. The use of a fluoroscopic device can provide continuous screening of the lumbar tract during patient spontaneous motion, with an acceptable, low X-ray dose. The kinematic analysis is intended to be limited to planar motion. Kinematic parameters are computed from vertebral landmarks on each frame of the image sequence. Landmarks are normally selected manually in spite of the fact that this is subjective, tedious to perform and regarded as one of the major contributors to errors in the computed kinematic parameters. The aim of this work is to present an innovative method for the automatic recognition of vertebral landmarks throughout a fluoroscopic image sequence to provide an objective and more precise quantification of intervertebral kinematics. The recognition procedure is based upon comparing vertebral features in two adjacent frames by means of a cross-correlation index, which is also robust despite the low signal-to-noise ratio of the lumbar fluoroscopic images. To provide a quantitative assessment of this method a calibration model was used which consisted of two lumbar vertebrae linked by a universal joint. The reliability and accuracy of the kinematic measurements have been investigated. The errors are of the order of a millimetre for the localisation of the intervertebral centre of rotation and tenths of a degree for the intervertebral angle. Error analysis suggests that this method improves the accuracy of the intervertebral kinematic calculations and has the potential to automate the selection of anatomical landmarks.
References
Amevo, B. (1991): ‘Instantaneous axis of rotation of the typical cervical motion segments’. PhD thesis, University of Newcastle, Newcastle, Australia
Amevo, B., Worth, D., andBogduk, N. (1991): ‘Instantaneous axis of rotation of the typical cervical motion segments: a study in normal volunteers’,Clin. Biomech.,6, pp. 111–117
An, H. S., Haughton, V. M., Lim, T. H., Hong, J., Nowicki, B., You, L., andYoshida, H. (1996): ‘The relationship between disc degeneration and kinematics characteristics of the lumbar spine motion segment’. Proceedings of the 11th Annual Conference of the North American Spine Society, 23–26 October 1996
Aubin, C. E., Danserau, J., Petit, Y., Parent, F., De Guise, J. A., andLabelle, H. (1998): ‘Three-dimensional measurement of wedged scoliotic vertebrae and intervertebral disks’,Eur. Spine J.,7, pp. 59–65
Bakke, S. N. (1931): ‘Roentgenologische Beobachtungen uber die Bewegungen de Wirbersaule’,Acta Radiol. Suppl., 123
Bifulco, P., Allen, R., Della Fera, A., De Stefano, A., Magliulo, R., andBreen, A. C. (1995): ‘Automatic recognition of vertebral landmarks using videofluoroscopic images: an alternative for spine kinematics’. Proceedings of BIOMED '95 Simulation in Biomedicine, Milan, Italy, 21–23 June 1995
Bifulco, P., Cesarelli, M., Sansone, M., Allen, R. andBracale, M. (1997): ‘Fluoroscopic analysis of intervertebral lumbar motion: a rigid model fitting technique’. Proceedings of the World Congress on Medical Physics and Biomedical Engineering, Nice 14–19 September 1997
Bifulco, P. (1998): ‘Analysis of intervertebral kinematics using fluoroscopic image sequences’, PhD thesis, University of Naples, Italy
Bogduk, N., Amevo, B., andPearcy, M. (1995): ‘A biological basis for instantaneous centre of rotation of the vertebral column’,J. Eng. Med.,209, pp. 177–183
Breen, A., Allen, R., andMorris, A. (1989): ‘Spine kinematics: a digital videofluoroscopic technique’,J. Biomed. Eng.,11, pp. 224–228
Breen, A. C. (1991): ‘The measurement of the kinematics of the human spine using videofluoroscopy and image processing’, PhD thesis, University of Southampton, Southampton
Breen, A. C., Brydges, R., Nunn, H., Kause, J., andAllen, R. (1993): ‘Quantitative analysis of lumbar spine intersegmental motion’Eur. J. Physical Med. Rehab.,3, pp. 182–190
Brown, B., Burnstein, A., Nash, C., andSchock, C. (1976): ‘Spinal analysis using a three dimensional radiographic technique’,J. Biomech.,9, pp. 355–365
Cholewicki, J., McGill, S., Wells, B., andVernon, H. (1991): ‘Method for measuring vertebral kinematics from videofluoroscopy’Clin. Biomech.,6, pp. 73–78
Cholewicki, J., andMcGill, S. M. (1992): ‘Lumbar posterior ligament involvement during extremely heavy lifts estimated from fluoroscopic measurements’,J. Biomech.,25, pp. 17–28
Dimnet, J., Fischer, L. P., Gonon, G., andCarret, J. P. (1978): ‘Radiographic studies of lateral flexion in the lumbar spine’,J. Biomech.,11, 143–150
Dittmar, O. (1929): ‘Die saggital und lateralflexorische Bewegung der menschlicher Lendewirbelsaule in Roentgenbild’,Z. f. d. ges. Anat.,92, 644–667
Fick, R., andStrasser, H. (1913): ‘Lehrbuch der nuskel und Gelenk Mechanik’ (Springer, Berlin)
Frankel, V., andBurstein, A. (1974): ‘Biomechanics of the locomotor system,Medical engineering in research. Year book’ (Medical Publisher Inc.), pp. 505–515
Friberg, O. (1987): ‘Lumbar instability: a dynamic approach by traction compression radiography’,Spine,12, pp. 119–129
Gertzbein, S. D., Seligman, J. Holtby, K., Chan, K. H., Kapasouri, A., andCruikshank, B. (1985): ‘Centrode patterns and segmental instability in degenerative disk disease’Spine,4, pp. 257–261
Gianturco, C. (1944): ‘A roentgen analysis of the motion of the lower lumbar vertebrae in normal individuals and in patient with low back pain’,Am. J. Roentgend.,52, pp. 261
Huang, T. S., andNetravali, A. N. (1994): ‘Motion and structure from feature correspondences: a review’Proc. IEEE,82, 252–268
JAin, A. K. (1989): ‘Fundamentals of digital image processing’ (Prentice Hall International)
Kinzel, G. L., Hall, A. S., andHillberry, B. M. (1972): ‘Measurements of the total motion between two body segments — I. Analytical development’,J. Biomech.,5, pp. 93–105
Lysell, E. (1969): ‘Motion in the cervical spine’,Acta Orthop. Scand., Suppl. 123
Muggleton, J. M., andAllen, R. (1997): ‘Automatic location of vertebrae in digitized videofluoroscopic images of the lumbar spine’,J. Med. Eng. Phys.,19, pp. 77–89
Muggleton, J. M., andAllen, R. (1998): ‘Insights into the measurement of vertebral translation in the sagittal plane’,J. Med. Eng. Phys.,20, pp. 21–32
Page, W. H., andMonteith, W. (1992): ‘Bone movement analysis from computer processing of X-ray cinematic video images’. Proceedings of the 4th International Conference on Image Processing, IEE, 354, pp. 381–384
Page, W. H., Monteith, W., andWithehead, L. (1993): ‘Dynamic spinal analysis — fact or finction’.Chiropractic J. Australia,23, pp. 82–85
Panjabi, M., andWhite, A. (1971): ‘A mathematical approach for three-dimensional analysis of the mechanics of the spine’,J. Biomech.,4, pp. 203–211
Panjabi, M. (1973): ‘Three-dimensional mathematical model of the human spine structure’,J. Biomech.,6, pp. 671–680
Panjabi, M. (1979): ‘Centers and angles of rotation of body joints: a study of errors and optimization’,J. Biomech.,12, pp. 911–920
Panjabi, M., Chang, D., andDvorak, J. (1992): ‘An analysis of errors in kinematics parameters associated with in vivo functional radiographs’,Spine,2, pp. 200–205
Pearcy, M., andTibrewal, S. (1984): ‘Axial rotation and lateral bending in the normal lumbar spine measured by three-dimensional radiography’,Spine,6, pp. 582–587
Pearcy, M., Portek, I., andShepherd, J. (1984): ‘Three-dimensional X-ray analysis of normal movement in the lumbar spine’,Spine,3, pp. 294–297
Pearcy, M. (1985): ‘Stereoradiography at lumbar spine motion’,Acta Orthop. Scand., Suppl.212, Munksgaard, Copenhagen
Pearcy, M. (1986): ‘Measurement of back and spinal mobility’,Clin. Biomech.,1, pp. 44–51
Pearcy, M., andBogduk, N. (1988): ‘Instantaneous axes of rotation of the lumbar intervertebral joints’,Spine,13, pp. 1033–1041
Rolander, S. D. (1966): ‘Motion of the lumbar spine with special reference to the stabilizing effect of posterior fusion’,Acta Orthop. Scand., Suppl. 90
Simonis, C. (1994): ‘Parallel calculation and analysis of spine kinematics using videofluoroscopy and image processing’, PhD thesis, University of Southampton, Southampton
Simonis, C., Allen, R., andBreen, A. (1994): ‘Rigid model fitting technique: an alternative in the selection of landmarks on spinal images’. Proceedings of the fifth Symposium on Biomedical Engineering, Santiago de Compostele,2, pp. 103–104
Steffen, T., Rubin, R. K., Baramki, H. G., Antoniou, J., Marchesi, D., andAebi, M. (1997): ‘A new technique for measuring lumbar segmental motion in vivo’,Spine,22, pp. 156–166
Tanz, S. S. (1953): ‘Motion of the lumbar spine’,Am. J. Roentgend.,69, pp. 399–412
Todd, T. W., andPyle, I. S. (1928): ‘A quantitative study of the vertebral column by direct roentgenologic methods’,Amer. J. Phys. Anthrop.,12, pp. 321
Van Mameren H. (1988): ‘Motion patterns in the cervical spine’. PhD thesis, University of Limburg, Dept. of Anatomy and Embriology, The Netherlands
Van Mameren, H., Drukker, J. Sanches, H., andBeursgens, J. (1990): ‘Cervical spine motion in the sagittal plane (I) range of motion of actually performed movements, and X-ray cinematographic study’,Eur. J. Morphology,28, pp. 47–68
Van Mameren, H., Sanches, H. Beursgens, J., andDrukker, J. (1992): ‘Cervical spine motion in the sagittal plane (II) position of segmental averaged instantaneous centers of rotation—a cineradiographic study’,Spine,17, pp. 467–474
Weber, E. H. (1827): ‘Anatomisch-physiologisch Unter such ungen ubereinige Einrichtungen im Mechanismus der Menschlichen Wirbelsaule’,Arch. Anat. Physiol. Joahn Fr. Meckel, pp. 240–271
White, A. (1969): ‘Analysis of the thoracic spine in man’,Acta Orthop. Scand., III, Suppl. 123
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Bifulco, P., Cesarelli, M., Allen, R. et al. Automatic recognition of vertebral landmarks in fluoroscopic sequences for analysis of intervertebral kinematics. Med. Biol. Eng. Comput. 39, 65–75 (2001). https://doi.org/10.1007/BF02345268
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DOI: https://doi.org/10.1007/BF02345268