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Non-alcoholic fatty liver disease (NAFLD) is a major health concern due to the increasing obesity epidemic and it has the risk to progress to liver fibrosis, cirrhosis and hepatocellular carcinoma. It is important to assess the severity of hepatic fibrosis for the risk-stratified management of patients with NAFLD. Ultrasound elastography is a new technique for evaluation of liver fibrosis and it has...
Hepatic steatosis is an important histologic factor in non-alcoholic fatty liver disease (NAFLD) spectrum. The aim of this study is to evaluate the impact of steatosis on liver fibrosis stiffness measurement by acoustic radiation force impulse (ARFI) elastography. Meanwhile, the dynamical mechanical analysis (DMA) test is performed to quantify the mechanical behavior of rat livers. The rat models...
Most ultrasound elastographic methods utilize a purely elastic model to describe the liver mechanical properties. However, to describe tissue that is dispersive and to obtain an accurate measure of tissue elasticity, the tissue viscoelastic property should be examined. The objective of this study was to investigate the shear viscoelastic characteristics, as measured by ultrasound elastography, of...
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