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Proceedings Paper

Utilization of speckle techniques at measurements of biomechanical characteristics of cadaverous human lumbar spine samples after application of various surgical fixation methods
Author(s): Ludek Bartonek; Jiri Keprt; Jiri Charamza; Lumir Hrabalek
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Paper Abstract

Special equipment was realized for testing of stabilization methods of samples of lower part of the spine (L1-L5). During straining and measurement of the rigidity of the sample as a whole it is also necessary to observe the movement of individual parts of the sample. This movement is non-contact followed with the help of round targets connected to the appropriate vertebra to be observed. The watched targets are lit with a lamp or laser, and are identified by two CCD cameras. An optical signal is brought into a computer and evaluated by the fast Fourier transformation method. The period and direction of interference fringes determine the size and the direction of the shift.

Paper Details

Date Published: 14 October 2003
PDF: 8 pages
Proc. SPIE 5143, Novel Optical Instrumentation for Biomedical Applications, (14 October 2003); doi: 10.1117/12.500040
Show Author Affiliations
Ludek Bartonek, Palacky Univ. (Czech Republic)
Jiri Keprt, Palacky Univ. (Czech Republic)
Jiri Charamza, Palacky Univ. (Czech Republic)
Lumir Hrabalek, Univ. Hospital Olomouc (Czech Republic)


Published in SPIE Proceedings Vol. 5143:
Novel Optical Instrumentation for Biomedical Applications
Albert-Claude Boccara, Editor(s)

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