Journal
ACADEMIC RADIOLOGY
Volume 28, Issue 9, Pages 1272-1286Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.acra.2020.07.028
Keywords
Dual-energy X-ray absorptiometry; BMD; errors; pitfalls; quality; artifacts
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DXA is the most common modality for quantitative measurements of bone mineral density, but errors related to this exam are still very common and may impact the final diagnosis and therapy. Operator-related errors, such as wrong patient positioning, error in the acquisition process, or in the scan analysis, can occur during each step of DXA. It is important to recognize and avoid such errors to ensure accurate results.
Dual-energy X-ray absorptiometry (DXA) is the most common modality for quantitative measurements of bone mineral density. Nevertheless, errors related to this exam are still very common, and may significantly impact on the final diagnosis and therapy. Operator-related errors may occur during each DXA step and can be related to wrong patient positioning, error in the acquisition process or in the scan analysis. The aim of this review is to provide a practical guide on how to recognize such errors in spine and hip DXA scan and how to avoid them, also presenting some of the most common artifacts encountered in clinical practice.
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