Abstract
Background
Whole-body magnetic resonance imaging (MRI) has been investigated by multiple authors as a radiation-free alternative to positron emission tomography computed tomography (PET-CT) in children with lymphoma.
Objective
To evaluate the sensitivity, specificity, and diagnostic odds ratio of whole-body MRI compared to PET-CT for the staging of pediatric lymphoma.
Methods
The databases PubMed, Embase, and Scopus were searched for studies that reported the accuracy of whole-body MRI compared to PET-CT for lymphoma staging in children. Data was collected from included studies to formulate 2 × 2 contingency tables, including the number of true positive, true negative, false positive, and false negative. The pooled sensitivity, specificity, and diagnostic odds ratio (DOR) were calculated. Summary receiver operating characteristic curves were drawn and the area under the curve (AUC) calculated. In addition, the Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS 2) tool was used to assess the risk of bias and applicability concerns.
Results
A total of seven studies were included in the final analysis. Of these, six studies used unenhanced whole-body MRI. The pooled sensitivity of whole-body MRI-based staging was 95.8%, while the pooled specificity was 21.8%. The DOR for whole-body MRI was 1.19. For extranodal staging, the pooled sensitivity was 88.9%, specificity was 97.4%, and DOR was 25.29. The partial AUC for overall staging was 0.63, whereas that for extranodal staging stood at 0.88. Based on the QUADAS 2 tool, all seven studies were at risk of bias (six at high risk, one at unclear risk).
Conclusion
Whole-body MRI has high sensitivity for staging of pediatric lymphoma and may be a useful alternative to PET-CT.
Graphical abstract
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Data availability
The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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M.J. conceived, supervised, and supported the study. D.B. collated and analyzed the data, performed the statistical analysis, and drafted the initial manuscript. D.K. supervised the analysis and performed critical revision. All authors reviewed and approved the final manuscript.
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Bhalla, D., Jana, M. & Kandasamy, D. Diagnostic accuracy of whole-body magnetic resonance imaging versus positron emission tomography-computed tomography for the staging of pediatric lymphoma: a systematic review and meta-analysis. Pediatr Radiol 53, 2683–2691 (2023). https://doi.org/10.1007/s00247-023-05775-7
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DOI: https://doi.org/10.1007/s00247-023-05775-7