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  • Title: Direct comparison of diagnostic accuracies of F-18 FDG PET and MRI for detection of bone marrow involvement in lymphoma patients; A meta-analysis.
    Author: Kim K, Kim SJ.
    Journal: Leuk Res; 2020 Dec; 99():106475. PubMed ID: 33189988.
    Abstract:
    BACKGROUND: The purpose of the current study was to compare the diagnostic accuracies of F-18 FDG PET or PET/CT and MRI for detection of bone marrow involvement (BMI) in lymphoma patients through a systematic review and meta-analysis. METHODS AND MATERIALS: The PubMed, Cochrane database, and EMBASE database, from the earliest available date of indexing through July 31, 2020, were searched for studies evaluating direct comparison of diagnostic performance of F-18 FDG PET or PET/CT and MRI for BMI in lymphoma patients. We determined the sensitivities and specificities across studies, calculated positive and negative likelihood ratios (LR + and LR-), and constructed summary receiver operating characteristic curves. RESULTS: Across 5 studies (212 patients), the pooled sensitivity of F-18 FDG PET or PET/CT was 0.65 (95 % CI; 0.42-0.82) a pooled specificity of 0.90 (95 % CI; 0.85-0.94). Likelihood ratio (LR) syntheses gave an overall positive likelihood ratio (LR+) of 6.4 (95 % CI; 3.3-12.4) and negative likelihood ratio (LR-) of 0.39 (95 % CI; 0.21-0.73). The pooled DOR was 16 (95 % CI; 5-56). The pooled sensitivity of MRI was 0.78 (95 % CI; 0.55-0.91) and a pooled specificity of 0.86 (95 % CI; 0.67-0.95). Likelihood ratio (LR) syntheses gave an overall positive likelihood ratio (LR+) of 5.6 (95 % CI; 1.8-17.0) and negative likelihood ratio (LR-) of 0.26 (95 % CI; 0.1-0.65). The pooled DOR was 22 (95 % CI; 3-149). In meta-regression analysis, no variable was the source of the study heterogeneity. CONCLUSION: F-18 FDG PET or PET/CT and MRI showed similar diagnostic performances for the detection of BMI in lymphoma patients. Further large multicenter studies would be necessary to substantiate the diagnostic accuracy of F-18 FDG PET or PET/CT and MRI for the diagnosis of BMI in lymphoma patients.
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