Shear Wave Elastography for Assessment of Steatohepatitis and Hepatic Fibrosis in Rat Models of Non-Alcoholic Fatty Liver Disease

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• 作者：Bo-Kyeong Kang^&lowast ; ; ^§ ; ; Seung Soo Lee^&lowast ; ; ^{seungsoolee@amc.seoul.kr" class="auth_mail" title="E-mail the corresponding author} ; Hyunhee Cheong^&lowast ; ; Seung Mo Hong^&dagger ; ; Kiseok Jang^&Dagger ; ; Moon-Gyu Lee^&lowast ;
• 关键词：Shear wave elastography ; Nonalcoholic fatty liver disease ; Nonalcoholic steatohepatitis ; Liver elasticity ; Hepatic fibrosis
• 刊名：Ultrasound in Medicine & Biology
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：41
• 期：12
• 页码：3205-3215
• 全文大小：3508 K

文摘

The purpose of this study was to evaluate shear wave elastography (SWE) as a method for determining the severity of non-alcoholic fatty liver disease (NAFLD) and the stage of hepatic fibrosis, as well as the major determinants of liver elasticity among the various histologic and biomolecular changes associated with NAFLD. Rat NAFLD models with various degrees of NAFLD severity were created and imaged using SWE. The explanted livers were subjected to histopathologic evaluation and RNA expression analysis. Among the histologic and biomolecular findings, the fibrosis stage and the collagen RNA level were significant independent factors associated with liver elasticity (p < 0.001). Liver elasticity was effective in detecting non-alcoholic steatohepatitis (NASH) and in determining fibrosis stage, and the corresponding areas under the receiver operating characteristic curves were 0.963 and 0.927–0.997, respectively. In conclusion, SWE is a potential non-invasive method for the detection of NASH and staging of hepatic fibrosis in patients with NAFLD.