Author/Authors :
Patterson Matusin, Daniel Biomedical Engineering Program - Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE) - Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil , Fontes-Pereira, alDo José Biomedical Engineering Program - Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE) - Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil , taDeu CarDozo ribeiro rosa, Paulo Biomedical Engineering Program - Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE) - Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil , barboza, thiago Biomedical Engineering Program - Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE) - Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil , augusto loPes De souza, sergio Biomedical Engineering Program - Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE) - Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil , antônio von Krüger, MarCo Biomedical Engineering Program - Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE) - Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil , Coelho De albuquerque Pereira, Wagner Biomedical Engineering Program - Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE) - Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
Abstract :
Objective: This work evaluates the relationship between ul-
trasonic reflection and bone density from fourteen cylindrical
bovine cortical bone samples (3.0-cm thick). Methods: Twenty
US reflection signals per sample were acquired along the bone
surface (2.0-mm step). The Integrated Reflection Coefficient
(IRC) from each signal was compared to Quantitative Com-
puted Tomography (QCT). Results: Seven IRC and QCT curves
presented Pearson’s Correlation R-values above 0.5. For weak
correlation curves, QCT and IRC showed similar trends in several
segments. Conclusion: IRC was sensitive to bone density varia-
tion. Level of Evidence: Experimental Study, Investigating
a Diagnostic Test.
Keywords :
Ultrasonics , Cortical bone , Bone and Bones , Tomog- raphy , Bone density
