Displacement tracking in single human trabecula with metal-plated micro-spheres using X-ray radiography imaging

0389554 - ÚTAM 2013 RIV GB eng J - Článek v odborném periodiku
Jiroušek, Ondřej - Kytýř, Daniel - Doktor, Tomáš - Dammer, J. - Krejčí, F.
Displacement tracking in single human trabecula with metal-plated micro-spheres using X-ray radiography imaging.
Journal of Instrumentation. Roč. 8, č. 2 (2013), C02041-C02047. ISSN 1748-0221. E-ISSN 1748-0221
Grant CEP: GA ČR(CZ) GAP105/10/2305
Institucionální podpora: RVO:68378297
Klíčová slova: pixelated detectors and associated VLSI electronic * X-ray radiography and digital radiography (DR) * single trabeculae
Kód oboru RIV: FI - Traumatologie, ortopedie
Impakt faktor: 1.526, rok: 2013
http://iopscience.iop.org/1748-0221/8/02/C02041

This study presents an improved radiographic method for strain measurement in very small samples of a single trabeculae. X-ray micro-radiography was used to track the deformation behaviour of individual trabecula during mechanical loading. As the X-ray micro-radiography images of a single trabecula show no significant features applicable for digital image correlation (DIC) a random pattern of markers was created on the surfaces of the samples to improve the accuracy of tracking. Metal plated borosilicate glassmicro-spheres (mean diameter 10um) were used as the markers for trabecular displacement tracking. Two different X-ray imaging setups were used for this purpose. The specimens of isolated trabeculae were loaded by amicro-mechanical testing device developed with respect to radiographical observation. This compact device enables a high precision three-point bending measurement. The specimen was continuously irradiated during the loading procedure by amicro-focus X-ray source.
Trvalý link: http://hdl.handle.net/11104/0218544