Magnetic Resonance Elastography Versus Shear Wave Elastography in Chronic Liver Disease

Area of Science:

• Hepatology
• Medical Imaging
• Diagnostic Accuracy

Background:

• Chronic liver diseases (CLDs) pose global health challenges, potentially progressing to severe conditions like hepatic fibrosis.
• Accurate liver fibrosis assessment is vital for effective CLD management.
• Limitations of liver biopsy drive interest in non-invasive elastography methods.

Purpose of the Study:

• To compare the diagnostic accuracy of magnetic resonance elastography (MRE) and point shear wave elastography (SWE) (ElastPQ).
• To assess liver fibrosis in patients with various CLDs.

Main Methods:

• Prospective observational study of 40 CLD patients across four etiological groups.
• Liver stiffness measured by MRE and ElastPQ, quantified in kilopascals.
• Histopathological evaluation using METAVIR scoring and statistical analysis of diagnostic accuracy.

Main Results:

• MRE demonstrated superior diagnostic accuracy for any (AUROC: 0.966), significant (AUROC: 0.928), and severe fibrosis (AUROC: 0.902) compared to ElastPQ (AUROCs: 0.768, 0.737, 0.809).
• Significant positive correlation between MRE measurements and fibrosis stage (ρ = 0.844, P < 0.001).
• MRE showed perfect accuracy (AUROC: 1.000) in chronic viral hepatitis patients without CKD and outperformed ElastPQ in detecting significant fibrosis.

Conclusions:

• MRE is more sensitive than ultrasound elastography (ElastPQ) in detecting significant liver fibrosis.
• MRE's superior accuracy is crucial for guiding timely therapeutic interventions in CLD management.