Modern Possibilities of Liver Diffusion-Weighted Magnetic Resonance Images in the Diagnosis of Alcoholic Liver Disease

• Published in: Vestnik rentgenologii i radiologii Vol. 103; no. 4-6; pp. 6 - 17
• Main Authors: Lozbenev, F. S., Morozova, T. G.
• Format: Journal Article
• Language: English
• Published: Luchevaya Diagnostika, LLC 25.10.2022
• Subjects: alcoholic liver disease; diffusion-weighted images; magnetic resonance imaging
• ISSN: 0042-4676; 2619-0478
• DOI: 10.20862/0042-4676-2022-103-4-6-6-17

Objective : to evaluate the current possibilities of diffusion-weighted imaging (DWI) in liver magnetic resonance imaging (MRI) for the diagnosis of alcoholic liver disease (ALD). Material and methods . The examined patients were at the inpatient and outpatient stages of observation in the gastroenterology department on the basis of the Clinical Hospital No. 1 (Smolensk) and received treatment for diffuse liver diseases of alcoholic etiology. The study included 128 patients: 76 (59%) males and 52 (41%) females, mean age 42.3 ± 4.7 years. Patients were monitored from 2019 to 2022. All of them underwent abdominal organs ultrasound with liver clinical elastography and liver MRI with DWI; in 34 cases liver multi-slice computed tomography was performed. Results . When comparing the results of a qualitative assessment of liver DWI MRI with the CAGE (Cut, Annoyed, Guilty, Eye-opener) test data and the results of patients and relatives survey about the use of alcoholic beverages, a high correlation was established between the diffusion restriction in the liver during MRI and impaired withdrawal regimen (r = 0.901). The diagnostic and prognostic significance of the developed criteria for liver DWI MRI in patients with ALD at admission was assessed: for qualitative assessment AUROC 0.827 (95% CI 0.792–0.873), for quantitative assessment AUROC 0.949 (95% CI 0.912–0.981); in dynamic observation: for qualitative assessment AUROC 0.958 (95% CI 0.925–0.984), for quantitative assessment AUROC 0.947 (95% CI 0.947–0.981). Conclusion . The obtained quantitative indicators of liver DWI MRI make it possible to predict the clinical form of ALD: apparent diffusion coefficient for steatosis is 2.66 ± 0.9 × 10–3 mm2/s, for steatohepatitis – 2.14 ± 0.5 × 10–3 mm2/s, for hepatitis – 1.75 ± 0.6 × 10–3 mm2/s, for cirrhosis – 1.15 ± 0.6 × 10–3 mm2/s (AUROC 0.948; 95% CI 0.922–0.983). Qualitative parameters of liver DWI MRI (there is/is not a diffusion restriction) predict violations of the withdrawal regimen in patients with ALD in all its clinical forms (AUROC 0.931; 95% CI 0.822–0.979).