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Utility of real-time shear wave elastography for assessing liver fibrosis in patients with chronic hepatitis C infection without cirrhosis: Comparison of liver fibrosis indices



Utility of real-time shear wave elastography for assessing liver fibrosis in patients with chronic hepatitis C infection without cirrhosis: Comparison of liver fibrosis indices



Hepatology Research 45(10): E122-E129



To clarify the diagnostic impact of liver fibrosis except for cirrhosis identified using shear wave elastography (SWE) in chronic hepatitis C (CHC) patients, and to compare the performance in diagnosing liver fibrosis among SWE and liver fibrosis indices. A total of 55 CHC patients who underwent liver biopsy were analyzed. The diagnostic performance for identifying significant liver fibrosis (F2-F3) for SWE, FIB-4 index, aspartate aminotransferase-to-platelet ratio index (APRI) and Forns' index was assessed using receiver-operator curve (ROC) analysis. The median SWE elasticity value, FIB-4 index, APRI and Forns' index in the F0-F1 and F2-F3 groups were 6.3 kPa and 13.1 kPa; 1.52 and 4.45; 0.41 and 1.43; and 7.69 and 8.85, respectively (P < 0.001 for all four methods). Multivariate analysis showed that SWE was independently associated with the presence of significant liver fibrosis (odds ratio, 2.52; 95% confidence interval, 1.49-4.28; P < 0.001). The area under the ROC curve for SWE in diagnosing significant liver fibrosis was 0.94, indicating high diagnostic value, compared with 0.86, 0.88 and 0.83, for the FIB-4 index, APRI and Forns' index, respectively, which corresponds to moderate diagnostic value. The accuracy of SWE, FIB-4 index, APRI and Forns' index for diagnosing significant liver fibrosis was 90.9%, 76.4%, 74.5% and 67.2%, respectively. SWE has excellent ability for diagnosing significant liver fibrosis in CHC even when patients with cirrhosis are excluded. The diagnostic performance of SWE is superior to that of three liver fibrosis indices.

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Accession: 059224152

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PMID: 25580959

DOI: 10.1111/hepr.12476


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