期刊
ACADEMIC RADIOLOGY
卷 19, 期 7, 页码 811-818出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.acra.2012.02.022
关键词
Computed tomography; fatty liver; MESA
资金
- National Heart, Lung, and Blood Institute [R01 HL071739, N01-HC-95159, N01-HC-95160, N01-HC-95161, N01-HC-95162, N01-HC-95163, N01-HC-95164, N01-HC-95165, N01 HC 95169]
Rationale and Objectives: Fatty liver disease is a common clinical entity in hepatology practice. This study evaluates the prevalence and reproducibility of computed tomography (CT) measures for diagnosis of fatty liver and compares commonly used CT criteria for the diagnosis of liver fat. Materials and Methods: The study includes 6814 asymptomatic participants from a population-based sample. The ratio of liver-to-spleen (US) Hounsfield units (HU) <1.0 and liver attenuation <40 HU were used for diagnosing and assessing the severity of liver fat content. Participants with heavy alcohol intake (>7 drinks/week for women and >14 drinks/week for men) were excluded. Final analysis was performed on participants where images of both liver and spleen were available on the scans. Results: The overall prevalence of fatty liver (4175 subjects included in final analysis) was 17.2% (using US ratio <1.0), with 6.3% (with <40 HU cutoff) of the population having moderate to severe steatosis (>30% liver fat content). The prevalence was high in participants with dyslipidemia (70.4%), hypertension (56.8%), and obesity (53%). Diabetic patients had 24.1% prevalence of fatty liver. The prevalence provided by US ratio <1.0 (17.2%) was comparable to prevalence provided by <51 HU (17.3%), whereas prevalence obtained by <40 HU (6.3%) cutoff corresponded to US ratio of <0.8 (6.5%). The measurements of liver and spleen HU attenuations were highly reproducible (0.96, 0.99 and 0.99, 0.99 for intra- and inter-reader variability, respectively) in a sample of 100 scans. Conclusion: Fatty liver can be reliably diagnosed using nonenhanced CT scans.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据