通过超声积分反射系数探索皮质骨密度
EXPLORING CORTICAL BONE DENSITY THROUGH THE ULTRASOUND INTEGRATED REFLECTION COEFFICIENT.
作者信息
Matusin Daniel Patterson, Fontes-Pereira Aldo José, Rosa Paulo Tadeu Cardozo Ribeiro, Barboza Thiago, de Souza Sergio Augusto Lopes, von Krüger Marco Antônio, Pereira Wagner Coelho de Albuquerque
机构信息
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.
Laboratório de Marcação de Células e Moléculas (LMCM), Department of Radiology, School of Medicine, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil.
出版信息
Acta Ortop Bras. 2018;26(4):255-259. doi: 10.1590/1413-785220182604177202.
OBJECTIVE
This work evaluates the relationship between ultrasonic 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 Computed 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 variation.
目的
本研究评估了14个圆柱形牛皮质骨样本（3.0厘米厚）的超声反射与骨密度之间的关系。
方法
沿骨表面（步长2.0毫米）采集每个样本的20个超声反射信号。将每个信号的积分反射系数（IRC）与定量计算机断层扫描（QCT）进行比较。
结果
7条IRC曲线和QCT曲线的皮尔逊相关系数R值高于0.5。对于相关性较弱的曲线，QCT和IRC在几个部分呈现出相似的趋势。
结论
IRC对骨密度变化敏感。
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