王发珍,阳丹才让,王晶晶

代谢相关脂肪性肝病（metabolic dysfunction-associated fatty liver disease，MAFLD）从被认识到现在短短时间内已经成为全球范围内最常见的慢性肝病之一，其患病率在普通人群中约为20–30%，在2型糖尿病患者中高达55–80%，其不单是孤立的肝脏脂肪变性，更直接增加心血管-肾脏-代谢综合征（cardiovascular-kidney-metabolic syndrome，CKM）、恶性肿瘤等肝外疾病风险。超声检查因其安全、无创、经济且易于获取，被公认为MAFLD筛查和诊断的首选影像手段。本文将从脂肪性肝病名称的变更、超声与其他影像学的对比入手并介绍具有代表性的基于声衰减系数的定量超声技术，以及其在肝脂肪变性检测中的诊断价值。

代谢相关脂肪性肝病；脂肪肝分级；超声；综述

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