New index for fatty liver classification based on findings of abdominal ultrasonography

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  • KOMIYAMA Yasuhiro
    Department of Clinical Laboratory, Osaka Railway Hospital Department of Medical Nutrition, Graduate School of Life Science, Osaka City University
  • MORI Takahiro
    Department of Gastroenterology, Osaka Railway Hospital
  • ITO Tadashi
    Department of Gastroenterology, Osaka Railway Hospital
  • SHIMIZU Seiji
    Department of Gastroenterology, Osaka Railway Hospital
  • MIZUNO Shigeto
    Department of Medical Pharmaceutics, Kobe Pharmaceutical University
  • HABU Daiki
    Department of Medical Nutrition, Graduate School of Life Science, Osaka City University

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  • 腹部超音波における脂肪肝分類のための新たな指標(肝臓径計測と脂肪厚測定)
  • フクブ チョウオンパ ニ オケル シボウ カン ブンルイ ノ タメ ノ アラタ ナ シヒョウ(カンゾウケイ ケイソク ト シボウコウ ソクテイ)

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Abstract

To identify patients with serious pathogenesis, we proposed a new classification system for fatty liver, which is the most common finding in medical ultrasonographic examination of the abdomen. The thicknesses of subcutaneous and visceral fat measured by ultrasonography exhibits a good correlation with the areas of subcutaneous and visceral fat, respectively, measured by abdominal computed tomography (CT) (r = 0.781 and 0.532, respectively). Compared to subjects having fatty liver without hepatomegaly, subjects having fatty liver with hepatomegaly have larger waist, higher body mass index (BMI), higher blood pressure, higher serum triglyceride levels, higher levels of serum aspartate aminotransferase (AST) and alanine aminotranferease (ALT), and lager visceral fat area (determined by CT findings). Subjects having fatty liver with hepatomegaly exhibit higher comorbidities of metabolic syndrome than those having fatty liver without hepatomegaly. <BR>Subjects having fatty liver with thick fat tissue have greater body weight, larger waist, higher BMI, larger visceral fat area (determined by CT), higher blood sugar levels, higher glycated hemoglobin (HbA1c) levels, and higher levels of serum AST and ALT than subjects having fatty liver with thin fat tissue. Subjects having fatty liver with thick fat tissue exhibit higher comorbidities of metabolic syndrome than those having fatty liver with thin fat tissue. Fatty liver with hepatomegaly or thick fat tissue (measured by ultrasonography) may be a serious pathological condition; therefore, it should be monitored carefully as a high-risk condition associated with metabolic disorders.

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