Controlled attenuation parameter for steatosis assessment in health checkup groups
10.3760/cma.j.cn115624-20200528-00430
- VernacularTitle:受控衰减指数对健康体检人群脂肪肝的定量诊断价值
- Author:
Yi ZHAO
1
;
Zhenya SONG
;
Jianjun WU
;
Liuhong WANG
;
Huiyi YE
;
Haojie YUAN
;
Yingwei WANG
;
Ting WU
;
Sishu YUAN
;
Qiang ZENG
Author Information
1. 浙江大学医学院附属第二医院 国际保健中心/全科医学科，杭州 310009
- From:
Chinese Journal of Health Management
2020;14(4):313-317
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the quantitative diagnostic value of controlled attenuation parameter (CAP) in health checkup groups with asymptomatic nonalcoholic fatty liver disease.Methods:A multicenter prospective study was conducted among Chinese individuals undergoing regular health checkups; a total of 173 subjects were investigated. Human body indexes such as height, weight, and blood pressure were measured, and complete blood count, liver function, blood lipid, FibroScan, and MRI-PDFF examinations were performed. Correlation between MRI-PDFF and CAP was described using Spearman′s and Pearson′s coefficients. Diagnostic efficacy of the CAP was evaluated using the subject work characteristic curve and the area under this curve, and the optimal cut-off value was determined according to the Youden index.Results:The average age and body mass index of the subjects were 45.0±10.5 years and 25.8±4.0 kg/m 2, respectively. A linear correlation was found between CAP and lg transformed magnetic resonance imaging-based proton density fat fraction results (Pearson′s coefficient 0.772, P<0.001). When optimized for ≥90% sensitivity, the CAP cutoff for staging ≥S1 steatosis was 244 dB/m. Conclusions:The CAP result was significantly correlated with the liver fat fraction measured by MRI-PDFF, and capable of differentiating steatosis grades. CAP can be used as a tool for screening fatty liver in health checkup groups.
