Interobserver agreement for contrast-enhanced ultrasound of liver imaging reporting and data system: A systematic review and meta-analysis.

However, the meta-regression analysis showed that the study design (0.78 vs 0.61, P = 0.26), the number of US systems (0.77 vs 0.76, P = 0.93), the number of FLLs (0.72 vs 0.82, P = 0.16), and reference standard (0.69 vs 0.77, P = 0.58) did not reach statistical significance for the heterogeneity, which confirmed that the use of LI-RADS on CEUS for the diagnosing of FLLs was stable laterally.

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