Diagnostic accuracy of dual-energy computed tomography (DECT) to detect non-traumatic bone marrow edema: A systematic review and meta-analysis.

PURPOSE

This meta-analysis aimed to evaluate the diagnostic performance of dual-energy computed tomography (DECT) for detecting bone marrow edema (BME) in non-traumatic patients.

METHODS

A systematic search of PubMed, EMBASE, and the Cochrane Library databases was performed up to October 1, 2021 for relevant original studies. Study details were extracted by two independent reviewers. A bivariate mixed-effects regression model was used to assess comprehensive diagnostic performance, and a subgroup analysis was performed to evaluate sources of variability. The risk of bias was evaluated with the QUADAS-2 tool.

RESULTS

Ten studies involving 2463 regions, including hands, ankles, hips, and sacroiliac joints, were evaluated in this meta-analysis. Summary sensitivity, specificity, and area under the receiver operating characteristic curve values for BME were 88.4% (95% confidence interval (CI) 82.4%-92.5%), 96.1% (95% CI 94.4%-97.3%), and 0.98 (95% CI 96%-99%), respectively. The subgroup analysis showed that studies using a thicker slice (≥1 mm) had a higher sensitivity, and studies with older patients (≥60 years), fewer included patients (<40), and bones other than the pelvis had a higher specificity. Studies presented a generally low or unclear risk for bias and applicability concerns.

CONCLUSIONS

DECT has an excellent diagnostic performance for detecting BME in non-traumatic patients and may provide an alternative to magnetic resonance imaging (MRI) for the detection of non-traumatic BME in the future, especially when MRI is unavailable or contraindicated.