Dual-Energy X-ray Absorptiometry Image Resolution and TBS Precision.
Dual-Energy X-ray Absorptiometry Image Resolution and TBS Precision.
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双能 X 射线吸收法图像分辨率和 TBS 精度。
DOI：
10.1016/j.jocd.2015.01.004
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Blank,RobertD
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作者：
Blank,RobertD
双能X线骨密度仪（DXA）测量的骨密度（BMD）满足了这些要求，国际临床骨密度测量学会一直倡导BMD测量的严格性。国际临床密度测量学会最重要和最广泛使用的工具之一是其精密计算器，该计算器便于计算精度，并且易于适应“任何”测量，而不仅仅是BMD。骨密度测定界已经使其他医疗提供者认识到精确度的重要性，并将重复测量变化的意义的不确定性纳入其中。精密度的这种细微差别反映在最小显著变化的概念中，这是DXA报告的必要组成部分（1）。随着新的检测方法的出现，定义其性能是一项重要的任务，性能的各个方面都以分层的方式进行了说明。骨小梁评分（TBS）遵循这一预期模式。TBS研究的第一波浪潮试图建立其实用性，并通过证明其独立于既定骨折风险因素预测骨折的能力来实现这一目标（2）。这项工作已经建立了TBS的潜在效用，并将知识差距转移到理解TBS在通常实践环境中的表现。
Bone mineral density (BMD) as measured by dual-energy X-ray absorptiometry (DXA) fulfills these desiderata, and the International Society for Clinical Densitometry has championed rigor in BMD measurement. Among the International Society for Clinical Densitometry's most important and widely used tools is its precision calculator, which facilitates calculation of precision, and which is readily adapted to “any” measurement, not just BMD. The bone densitometry community has led other medical providers in recognizing the importance of precision and incorporating uncertainty about the significance of changes in repeated measurements. This nuanced view of precision is reflected in the concept of least significant change, which is a necessary component of DXA reporting (1).As new tests become available, defining their performance is an important task, and the various aspects of performance are addressed in a hierarchical fashion. Trabecular bone score (TBS) follows this expected pattern. The first wave of TBS research sought to establish its utility and achieved this goal by demonstrating its ability to predict fracture independently of established fracture risk factors (2). This work has established TBS's potential utility and shifted the knowledge gap to understanding TBS's performance in the context of the usual practice setting.