A Novel Mechanical Parameter to Quantify the Microarchitecture Effect on Apparent Modulus of Trabecular Bone: A Computational Analysis of Ineffective Bone Mass

The shared data was for the paper “A Novel Mechanical Parameter to Quantify the Microarchitecture Effect on Apparent Modulus of Trabecular Bone: A Computational Analysis of Ineffective Bone Mass”. “Segment” refers to the lumbar vertebral level and the number in parentheses is the T-score. “VOI” means the volume of interests. “E(MPa)” is the apparent modulus of trabecular bone computed from micro finite element analysis. “# elements” refers to the number of elements in the micro finite element model. “BV/TV” is the bone volume fraction, computed as bone volume divided by total volume. “E*(GPa)” is the normalized apparent modulus of trabecular bone, computed to be E/(BV/TV). “LSVMR” denotes the low von Mises stress ratio and is computed as the ratio of the number of elements with von Mises stress less than 59 MPa to the total number of elements. “SMI” is the structural model index calculated using the software CTAn (Version 1.14.4.1, Bruker).

本共享数据集配套发表于论文《量化微结构对骨小梁表观模量影响的新型力学参数：无效骨量的计算分析》（英文原标题：A Novel Mechanical Parameter to Quantify the Microarchitecture Effect on Apparent Modulus of Trabecular Bone: A Computational Analysis of Ineffective Bone Mass）。其中，"Segment"指腰椎节段，括号内的数字为T值（T-score）；"VOI"指感兴趣体积（Volume of Interest）；"E(MPa)"为通过微有限元分析计算得到的骨小梁表观模量（apparent modulus of trabecular bone）；"# elements"指微有限元模型中的单元总数；"BV/TV"为骨体积分数（bone volume fraction），计算方式为骨体积与总体积的比值；"E*(GPa)"为归一化骨小梁表观模量（normalized apparent modulus of trabecular bone），计算公式为E/(BV/TV)；"LSVMR"代表低冯·米塞斯应力比（low von Mises stress ratio），计算方式为冯·米塞斯应力小于59 MPa的单元数与单元总数的比值；"SMI"为结构模型指数（structural model index），通过CTAn软件（版本1.14.4.1，布鲁克公司（Bruker））计算得到。