Use of a controlled attenuation parameter for the diagnosis of non-alcoholic fatty liver disease

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Abstract

Aim. To evaluate the efficacy of vibration-controlled transient elastography (VCTE) with a controlled attenuation parameter (CAP) in a population of patients with non-alcoholic fatty liver disease (NAFLD)and to compare to US and different non-invasive indices.

Materials and methods. Single center NAFLD patients’ database of 2021–2023 years was retrospectively analysed. Data of VCTE evaluation with CAP (FibroScan 530® and FibroScan 630 Expert®) as well as liver US examination results and values of HSI, FLI, BAAT and NAFLD-LFS were extracted. AUROCs for all methods used were constructed and sensitivity and specificity analysis was performed.

Results. The data of 1081 patients were available for analysis (385 with steatosis, 274 with NASH, 422 without NAFLD as a control). Ultrasound examination in the diagnosis of liver steatosis compared to VCTE with CAP showed sensitivity and specificity of 94.6 and 63.7%, respectively. Diagnosis of liver steatosis using indices and scales showed sensitivity and specificity of HSI: 97.9 and 60.1% (AUROC 0.90), FLI: 92.5 and 85.3% (AUROC 0.93), BAAT: 76.6 and 73.5% (AUROC 0.82), NAFLD-LFS: 56.7 and 81.8% (AUROC 0.85).

Conclusion. The sensitivity of the US of the liver was consistent with previous studies, but the specificity was low. The HSI index had the best indicators of sensitivity and specificity in relation to the diagnosis of liver steatosis. Combination of liver US and HSI can be used in screening of liver steatosis, however, for the complete diagnosis better tools which can simultaneously evaluate liver steatosis and fibrosis should be used.

About the authors

Alexey A. Goncharov

Federal Research Center of Nutrition, Biotechnology and Food Safety

Author for correspondence.
Email: thisalexis@gmail.com
ORCID iD: 0000-0002-8099-8602

аспирант отд-ния гастроэнтерологии, гепатологии и диетотерапии

Russian Federation, Moscow

Armida N. Sasunova

Federal Research Center of Nutrition, Biotechnology and Food Safety

Email: thisalexis@gmail.com
ORCID iD: 0000-0001-8896-5285

врач отд-ния гастроэнтерологии, гепатологии и диетотерапии

Russian Federation, Moscow

Vladimir I. Pilipenko

Federal Research Center of Nutrition, Biotechnology and Food Safety

Email: thisalexis@gmail.com
ORCID iD: 0000-0001-5632-1880

канд. мед. наук, науч. сотр. отд-ния гастроэнтерологии и гепатологии

Russian Federation, Moscow

Vasily A. Isakov

Federal Research Center of Nutrition, Biotechnology and Food Safety

Email: thisalexis@gmail.com
ORCID iD: 0000-0002-4417-8076

д-р мед. наук, проф., зав. отд-нием гастроэнтерологии, гепатологии и диетотерапии

Russian Federation, Moscow

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2. Fig. 1. Algorithm of patient selection in the study.

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3. Fig. 2. Comparison of ROC-curves of indices and scales in patients with liver steatosis by VCTE with CAP (a: HSI, b: FLI, scales: c: BAAT, d: NAFLD-LFS).

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