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Accuracy of transient elastography in assessing liver fibrosis in chronic viral hepatitis: A multicentre, retrospective study

 Yeon Seok Seo ; Moon Young Kim ; Young Seok Kim ; Young Woo Kang ; Dae-Ghon Kim ; Chang Hyeong Lee ; Youn Jae Lee ; Seong Gyu Hwang ; Won Young Tak ; Hyung Joon Yim ; Kwan Sik Lee ; Young Joo Jin ; Soung Won Jeong ; Jong Young Choi ; Soon Koo Paik ; Sang Gyune Kim ; Kwang-Hyub Han ; Soon Ho Um ; Tae Hee Lee ; In Hee Kim ; Byung Seok Kim ; Eun Uk Jung ; Hana Park ; Soo Young Park ; Sang Jun Suh ; Jung Il Lee ; Jin Woo Lee ; Jae Young Jang ; Bae Si Hyun ; Seung Up Kim 
 Liver International, Vol.35(10) : 2246~2255, 2015 
Journal Title
 Liver International 
Issue Date
BACKGROUND/AIMS: Transient elastography (TE) has become an alternative to liver biopsy (LB). This study investigated the diagnostic performance of liver stiffness (LS) measurement using TE in Korean patients with chronic hepatitis B and C (CHB and CHC). METHODS: From April 2006 to June 2014, 916 patients (567 CHB and 349 CHC) who underwent LB and TE at 15 centres were analyzed. The Batts and Ludwig scoring system was used for histologic assessment. Aspartate aminotransferase (AST)-to-platelet ratio indexes (APRI) were calculated. Area under the receiver operating characteristic curve (AUROC) was used. RESULTS: The median age, LS value, and APRI score were 45 years, 8.8 kPa, and 0.61, respectively, in CHB patients vs. 51 years, 6.8 kPa and 0.55, respectively, in CHC patients. TE was significantly superior to APRI in CHB patients (AUROC 0.774 vs. 0.72 for ≥F2, 0.849 vs. 0.812 for ≥F3, and 0.902 vs. 0.707 for F4, respectively; all P < 0.05). Furthermore, TE was significantly superior for predicting ≥ F3 stage (AUROC 0.865 vs. 0.840, P = 0.009) whereas it was similar for predicting ≥ F2 and F4 stage (AUROC 0.822 vs. 0.796; 0.910 vs. 0.884; all P > 0.05) in CHC patients. In CHB patients, optimal cut-off LS values were 7.8 kPa for ≥F2, 8.2 kPa for ≥ F3, and 11.6 kPa for F4, vs. 6.8 kPa, 8.6 kPa, and 14.5 kPa, respectively, in CHC patients. CONCLUSIONS: TE can accurately assess the degree of liver fibrosis in Korean patients with CVH. TE was superior to APRI for predicting each fibrosis stage.
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1. 연구논문 > 1. College of Medicine > Dept. of Internal Medicine
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