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. 2019 Oct 4:9:981.
doi: 10.3389/fonc.2019.00981. eCollection 2019.

Diagnostic Accuracy of Multi-Parametric Magnetic Resonance Imaging for Tumor Staging of Bladder Cancer: Meta-Analysis

Affiliations

Diagnostic Accuracy of Multi-Parametric Magnetic Resonance Imaging for Tumor Staging of Bladder Cancer: Meta-Analysis

Nieke Zhang et al. Front Oncol. .

Abstract

Purpose: Evaluate the diagnostic accuracy of multi-parametric magnetic resonance imaging (mp-MRI) for local staging of bladder cancer (BCa). Materials and Methods: The databases of PubMed, Web of Science, Wanfang, and CNKI were searched for related literatures about BCa diagnosed by mp-MRI from January 1, 2000 to April 12, 2019. The strict inclusion and exclusion criteria were set up to extract records. The Quality Assessment of Diagnostic Accuracy Studies (QUADAS)-2 was used to evaluate quality of the candidate studies. The pooled sensitivity, specificity, positive likelihood ratio (+LR), negative likelihood ratio (-LR), and diagnostic odds ratio (DOR) were calculated to assess the diagnostic authenticity of mp-MRI. The summarized receiver operating characteristic (SROC) curve corresponding with the area under the curve (AUC) were analyzed to comprehensively evacuate the diagnostic value of mp-MRI. Results: A total of 140 studies were retrieved by computer-based searching. After quality control, 4 studies with 259 patients were enrolled for meta-analysis. The pooled results showed 0.84 of sensitivity [95% confidence interval (CI) = 0.79-0.89], 0.91 of specificity (95% CI = 0.87-0.93), 8.24 of +LR (95% CI = 4.87-13.92), 0.18 of -LR (95% CI = 0.10-0.31), 49.42 of DOR (95% CI = 19.07-128.09), and 0.946 of AUC. The Spearman correlation analysis found no threshold effect (p = 0.684). A significant heterogeneity existed among 4 included studies with sensitivity (I2 = 65.7%), specificity (I 2 = 60.0%) and diagnostic OR (I 2 = 67.5%). The Begg's test (p = 0.497) and the egger's test (p = 0.337) found no publication bias. Conclusion: mp-MRI acts a good diagnostic performance for bladder cancer. It is plausible that mpMRIs can be used as an important method for bladder cancer staging.

Keywords: bladder cancer; diagnosis; meta-analysis; multi-parametric magnetic resonance imaging; staging.

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Figures

Figure 1
Figure 1
Flow diagram showing study selection process for meta-analysis.
Figure 2
Figure 2
Grouped bar charts show risk of bias and applicability concerns of 4 included records using QUADAS-2.
Figure 3
Figure 3
Forest plots of pooled sensitivity, specificity, and diagnostic OR.
Figure 4
Figure 4
Forest plots of pooled SROC Curve.
Figure 5
Figure 5
Plots of Egger's and Begg's test.

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