Value of Viscosity and Viscoelasticity Measurement in Patients with NAFLD Using Shear Wave Ultrasound Elastography

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  • Sugimoto Katsutoshi
    Department of Gastroenterology and Hepatology, Tokyo Medical University
  • Moriyasu Fuminori
    Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital
  • Oshiro Hisashi
    Department of Pathology, Jichi Medical University
  • Yoshimasu You
    Department of Gastroenterology and Hepatology, Tokyo Medical University
  • Takeuchi Hirohito
    Department of Gastroenterology and Hepatology, Tokyo Medical University
  • Kasai Yoshitaka
    Department of Gastroenterology and Hepatology, Tokyo Medical University
  • Furuichi Yoshihiro
    Department of Gastroenterology and Hepatology, Tokyo Medical University
  • Itoi Takao
    Department of Gastroenterology and Hepatology, Tokyo Medical University

Bibliographic Information

Other Title
  • NAFLD病態評価におけるShear Wave Dispersion Imagingの有用性
  • NAFLD ビョウタイ ヒョウカ ニ オケル Shear Wave Dispersion Imaging ノ ユウヨウセイ

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Description

<p>This study investigated the usefulness of shear wave (SW) speed (related to viscoelasticity), dispersion slope (related to viscosity), and attenuation value (related to steatosis) measurements obtained using a new ultrasound (US) elastography system in patients with nonalcoholic fatty liver disease (NAFLD). In multivariable analysis with histologic features as independent variables, the fibrosis stage was significantly related to SW speed (P=0.04) and the lobular inflammation grade was significantly related to dispersion slope (P=0.02). However, the steatosis grade was not significantly related to attenuation value (P=0.07). SW speed is more useful than dispersion slope for predicting the degree of fibrosis, and dispersion slope is more useful than SW speed for predicting the degree of necroinflammation. Dispersion slope, which reflects viscosity, may provide additional pathophysiological insight into NAFLD.</p>

Journal

  • Kanzo

    Kanzo 59 (7), 370-373, 2018-07-20

    The Japan Society of Hepatology

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