Curr Osteoporos Rep. 2014 Jun;12(2):227-9. doi: 10.1007/s11914-014-0203-6.
Dual-energy X-ray absorptiometry (DXA) is an inexpensive, noninvasive, widely available method for diagnosing osteoporosis, assessing fracture risk, and monitoring the effects of therapy. By diagnosing high-risk patients before a fracture occurs, clinicians can intervene early to reduce fracture risk. Appropriate use of DXA results in money saving for healthcare systems that might otherwise be spent for fracture-related care. Recent reports of studies evaluating DXA screening criteria and intervals for retesting have received considerable media coverage, sometimes suggesting that DXA is expensive, over-utilized, and unnecessary. This may lead to more patients who might benefit from early detection of osteoporosis remaining undiagnosed. We advocate for the use of current clinical practice guidelines with individualization of patient care factors to determine the optimal intervals for DXA testing.
双能 X 射线吸收法（DXA）是一种廉价、无创、广泛可用的方法，可用于诊断骨质疏松症、评估骨折风险和监测治疗效果。通过在骨折发生前诊断出高风险患者，临床医生可以及早干预以降低骨折风险。DXA 的合理使用可以为医疗保健系统节省资金，否则这些资金可能会用于与骨折相关的治疗。最近有报道评估 DXA 筛查标准和重新测试间隔的研究引起了媒体的广泛关注，有时表明 DXA 昂贵、过度使用且不必要。这可能导致更多可能受益于早期骨质疏松症检测的患者未被诊断。我们主张使用当前的临床实践指南，并结合患者护理因素的个体化，以确定 DXA 检测的最佳间隔。
