Department of Radiology, 12359University of Manitoba, Winnipeg, Manitoba, Canada.
Department of Medicine, 9968University of Alabama, Birmingham, Alabama, USA.
Can Assoc Radiol J. 2021 Aug;72(3):490-504. doi: 10.1177/0846537120919627. Epub 2020 Apr 20.
Dual-energy X-ray absorptiometry (DXA) is the method of choice for assessing bone mineral density (BMD). Unfortunately, the performance and interpretation of DXA can be challenging and errors are common. In fact, it has been reported that up to 90% of BMD reports contain at least 1 error. Errors can be the result of technique or interpretative in nature or both and can result in inappropriate diagnosis and management. In this article, we review the various types of pitfalls frequently encountered by physicians interpreting DXA studies. Being aware of these pitfalls will help readers recognize and avoid them when encountered in clinical practice.
双能 X 射线吸收法（DXA）是评估骨密度（BMD）的首选方法。不幸的是，DXA 的性能和解释可能具有挑战性，并且错误很常见。事实上，据报道，高达 90%的 BMD 报告至少存在 1 个错误。错误可能是技术或解释性质的，也可能两者兼而有之，可能导致诊断和管理不当。在本文中，我们回顾了医生在解读 DXA 研究时经常遇到的各种类型的陷阱。了解这些陷阱将有助于读者在临床实践中遇到时识别并避免它们。
