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A Three-Dimensional Digital Model for Early Diagnosis of Hepatic Fibrosis Based on Magnetic Resonance Elastography
Published on: July 21, 2023
LIMITED DIAGNOSTIC ACCURACY OF FIB-4 FOR DETECTING SIGNIFICANT LIVER FIBROSIS IN CHRONIC HEPATITIS B: A
Elyas Abdullah Alsalamy1, Heba Mahmoud Taha Elweshahi2, Heba Hany Omar3
1Faculty of Medicine, Alexandria University-Manchester University, Joint MBChB Programme, Alexandria, Egypt.
Arquivos De Gastroenterologia
|July 22, 2026
Summary
The Fibrosis-4 (FIB-4) score shows potential for assessing liver fibrosis in hepatitis B virus (HBV) patients in resource-limited settings. However, its moderate accuracy means additional tests are needed for precise fibrosis staging.
Area of Science:
- Hepatology
- Virology
- Diagnostic Accuracy
Background:
- Hepatitis B virus (HBV) infection is a global health concern, with Egypt experiencing a 1.4% incidence rate.
- Accurate liver fibrosis assessment is vital for managing HBV patients, but traditional liver biopsies have limitations.
- Non-invasive methods like vibration controlled transient elastography (VCTE) are alternatives but may not be accessible in all healthcare settings.
Purpose of the Study:
- To evaluate the diagnostic accuracy of Fibrosis-4 (FIB-4) and Aminotransferase to Platelet Ratio Index (APRI) compared to VCTE for detecting significant liver fibrosis in adult chronic HBV patients.
- To explore accessible and cost-effective non-invasive markers for liver fibrosis in HBV management.
- To identify predictors of advanced liver fibrosis in chronic HBV infection.
Main Methods:
- A cross-sectional study involving 247 adult chronic HBV patients from Alexandria University Viral Hepatitis Treatment Unit.
- Collected data included demographic, virologic, and laboratory parameters (liver function tests, CBC, INR, albumin, bilirubin).
- Statistical analysis involved logistic regression and receiver operating characteristic (ROC) curves to assess diagnostic performance of FIB-4 and APRI against VCTE.
Main Results:
- Of 247 patients, 140 had no/mild fibrosis (F0/1) and 107 had significant fibrosis (F2-F4) by VCTE.
- FIB-4 and APRI scores were significantly higher in patients with significant fibrosis (median FIB-4: 1.26 vs 0.79; median APRI: 0.40 vs 0.27).
- FIB-4 was a significant predictor of fibrosis (OR 1.558); at a cutoff >0.88, it showed 65.42% sensitivity and 60.0% specificity.
Conclusions:
- The FIB-4 score is a potentially useful tool for liver fibrosis assessment in resource-limited settings for HBV patients.
- Moderate sensitivity and specificity of FIB-4 can lead to misclassifications, highlighting the need for caution.
- Further integration of additional diagnostic methods is recommended to ensure accurate liver fibrosis staging in chronic HBV management.
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