Abstract
Objectives
To comprehensively assess the diagnostic performance of Vesical Imaging-Reporting and Data System (VI-RADS) score for detecting the muscle invasion of bladder cancer.
Methods
PubMed, Web of Science, and Embase were searched up to November 20, 2019. QUADAS-2 tool assessed the quality of included studies. The diagnostic estimates including sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and the area under the curve (AUC) of hierarchical summary receiver operating characteristic (HSROC) were calculated. Further subgroup analysis, meta-regression and sensitivity analysis were conducted.
Results
Six studies with 1064 patients were finally included. The pooled sensitivity, specificity, and AUC value were 0.90 (95% CI 0.86–0.94), 0.86 (95% CI 0.71–0.94), and 0.93 (95% CI 0.91–0.95) for VI-RADS 3 as the cutoff value. The corresponding estimates were 0.77 (95% CI 0.65–0.86), 0.97 (95% CI 0.88–0.99), and 0.92 (95% CI 0.89–0.94) for VI-RADS 4 as the cutoff value. Meta-regression analysis revealed that study design (p value 0.01) and surgical pattern of reference standard (p value 0.02) were source of the heterogeneity of pooled sensitivity. No publication bias was observed.
Conclusions
The VI-RADS score can provide a good predictive ability for detecting the muscle invasiveness of primary bladder cancer with VI-RADS 3 or VI-RADS 4 as the cutoff value.
Key Points
• VI-RADS score has high sensitivity and specificity for predicting muscle invasion.
• The diagnostic efficiencies of VI-RADS 3 and VI-RADS 4 as the cutoff value are similar.
• VI-RADS score could be used for detecting muscle invasion of bladder cancer in clinical practice.
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Abbreviations
- AUC:
-
Area under the curve
- CT:
-
Computed tomography
- DCE:
-
Dynamic contrast enhancement
- DWI:
-
Diffusion-weighted imaging
- FN:
-
False negative
- FP:
-
False positive
- HSROC:
-
Hierarchical summary receiver operating curve
- LR+, LR−:
-
Positive likelihood ratio, negative likelihood ratio
- MIBC:
-
Muscle invasive bladder cancer
- MRI:
-
Magnetic resonance imaging
- NMIBC:
-
Non-muscle invasive bladder cancer
- PRISMA:
-
Preferred Reporting Items for Systematic and Meta-analyses
- QUADAS:
-
Quality Assessment of Diagnostic Accuracy Studies
- T2WI:
-
T2-weighted imaging
- TN:
-
True negative
- TP:
-
True positive
- TURBT:
-
Transurethral resection of bladder tumor
- VI-RADS:
-
Vesical Imaging-Reporting and Data System
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The scientific guarantor of this publication is Lingwu Chen.
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ESM 1
Supplementary Fig. 1: Schematic diagram of VI-RADS score system. Source: [12]. CE: dynamic contrast-enhanced imaging; DWI: diffusion-weighted imaging; SC: structural category; SI: signal intensity. Supplementary Fig. 2: Methodological quality of the graph. Supplementary Fig. 3: Methodological quality of the summary. Supplementary Fig. 4: Forest plot of pooled sensitivity and specificity of VI-RADS 4 as the cutoff value (DOCX 817 kb)
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Luo, C., Huang, B., Wu, Y. et al. Use of Vesical Imaging-Reporting and Data System (VI-RADS) for detecting the muscle invasion of bladder cancer: a diagnostic meta-analysis. Eur Radiol 30, 4606–4614 (2020). https://doi.org/10.1007/s00330-020-06802-z
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DOI: https://doi.org/10.1007/s00330-020-06802-z