Background Transient elastography-based liver stiffness value (TE-LSV) has been investigated for assessing clinically signifi- cant portal hypertension (CSPH). The aetiology of CSPH is an important factor determining TE-LSV. There is insufficient evidence for selecting cut-off values. Aims This study performed a meta-analysis to compare the three most widely used cut-off values (around 13.6 kPa, 18 kPa and 22kPa) of TE-LSV for the diagnosis of CSPH in patients with chronic viral liver disease. Methods The PubMed, Ovid, Web of Science and Cochrane Library databases were searched. Diagnostic data for cut-off values around 13.6 kPa, 18 kPa and 22 kPa in each included study were extracted. The bivariate model was performed to estimate pooled sensitivity, specificity, positive likelihood ratio (LR+) and negative likelihood ratio (LR-). Results Eleven studies assessing 910 patients were included in this meta-analysis. Pooled sensitivities of cut-off values around 13.6 kPa, 18 kPa and 22 kPa were 0.96 (95% CI 0.93–0.97), 0.85 (0.81–0.89) and 0.74 (0.66–0.80), respectively; pooled specificities were 0.60 (0.47–0.75), 0.80 (0.71-0.87) and 0.94 (0.86–0.97), respectively. Pooled LR+ values were 2.4 (1.6– 3.7), 4.4 (2.9–6.8) and 11.5 (5.5–23.5) for cut-off values around 13.6 kPa, 18 kPa and 22 kPa, respectively, for pooled LR- values of 0.07
European Radiology – Springer Journals
Published: Jun 1, 2018
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