Liver MRI and histological correlates in chronic liver disease on multiphase gadolinium-enhanced 3D gradient echo

Diego R Martin1, Thomas Lauenstein, Bobby Kalb

  • 1Department of Radiology, University of Arizona School of Medicine, Tucson, AZ, USA. dmartin@radiology.arizona.edu

Abstract

Insights

Gadolinium-enhanced MRI shows delayed-phase enhancement patterns correlate with liver fibrosis severity in chronic liver disease (CLD). This imaging technique may quantify hepatic fibrosis progression.

Area of Science:

  • Radiology
  • Hepatology
  • Medical Imaging

Background:

  • Chronic liver disease (CLD) involves progressive fibrosis and inflammation.
  • Accurate staging of liver fibrosis is crucial for patient management and treatment decisions.
  • Non-invasive imaging biomarkers are needed to assess liver pathology severity.

Purpose of the Study:

  • To evaluate intrinsic hepatic enhancement patterns on multiphase, gadolinium-enhanced, fat-suppressed, 3D T1-weighted, gradient echo MRI.
  • To determine if these enhancement patterns quantitatively correlate with the severity of pathological changes in CLD.
  • To assess the utility of MRI in staging liver fibrosis and inflammation.

Main Methods:

  • 75 patients with CLD underwent contrast-enhanced multiphase abdominal MRI.
  • Liver biopsies provided histological correlation for fibrosis and inflammation staging (Scheuer system).
  • Delayed-phase and arterial-phase 3D gradient recalled echo (GRE) liver MRI were scored by three readers to quantify enhancement patterns.

Main Results:

  • High correlation was observed between delayed-phase MRI enhancement and liver fibrosis stage (r > 0.94, P < 10(-6)).
  • Correlation was lower for delayed-phase MRI versus inflammation, and arterial-phase MRI versus inflammation or fibrosis (CI ≤ 0.64).
  • Significant paired testing confirmed the association between delayed-phase MRI scores and incremental fibrosis stages (P < 10(-2) to P < 10(-5)).

Conclusions:

  • Standard gadolinium-enhanced liver MRI can provide a quantitative correlate for hepatic fibrosis.
  • Delayed-phase enhancement patterns show promise as a non-invasive biomarker for assessing fibrosis severity in CLD.
  • This MRI approach may aid in monitoring disease progression and treatment response.

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