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Does Hepatosteatosis Affect Shear-Wave Elastography Values in Chronic Hepatitis Patients with the Same Histological
Emrah Karatay1, Abdulkadir Eren2
1Department of Radiology, Sultan II. Abdulhamid Han Training and Research Hospital, Istanbul 34668, Türkiye.
Insights
Hepatosteatosis (fatty liver) does not significantly impact liver stiffness measurements in most fibrosis stages of chronic hepatitis. Shear-wave elastography remains reliable for monitoring patients with fatty liver disease.
Area of Science:
- Hepatology
- Medical Imaging
- Gastroenterology
Background:
- Percutaneous liver biopsy (PLB) traditionally assesses fibrosis in chronic hepatitis (CH) using Ishak and Knodell classifications.
- Hepatosteatosis (HS) is frequently observed in PLBs and may influence fibrosis evaluation.
- Shear-wave elastography (SWE) is an emerging non-invasive technique for assessing liver fibrosis.
Purpose of the Study:
- To evaluate the impact of hepatosteatosis on liver fibrosis assessment in chronic hepatitis.
- To compare shear-wave elastography (SWE) measurements with Ishak-Knodell fibrosis grades in the presence of varying degrees of steatosis.
- To determine if steatosis affects SWE (kPa) results within specific fibrosis grades.
Main Methods:
- Chronic hepatitis cases were stratified into three groups based on the presence and percentage of hepatosteatosis (<10% or ≥10%).
- Ishak-Knodell fibrosis grades and SWE values (kPa) were analyzed for all patients.
- Statistical comparisons were performed to assess the relationship between steatosis, fibrosis grades, and SWE values.
Main Results:
- Of 236 CH patients, 109 (46.2%) had HS, with 78 (71.5%) showing ≥10% steatosis.
- No significant difference in liver stiffness (kPa) was found between HS groups for Ishak-Knodell grades except F3 (p > 0.05).
- A significant difference in kPa values was observed for the F3 fibrosis grade (p < 0.05).
Conclusions:
- Liver stiffness (kPa) measurements by SWE correlate well with fibrosis grades in chronic hepatitis.
- SWE is a viable tool for monitoring CH patients with hepatosteatosis, potentially reducing the need for invasive procedures.
- Non-invasive SWE assessment enhances patient comfort and avoids unnecessary liver biopsies.
Abstract:
Background/Objectives: The Ishak and Knodell classifications are used to evaluate fibrosis on percutaneous liver biopsy (PLB) in chronic hepatitis (CH). Hepatosteatosis (HS) can also be seen in PLBs performed on patients. In addition to PLB, the shear-wave elastography (SWE) technique is increasingly used to evaluate liver fibrosis. Whether the presence of HS contributed to fibrosis in CH cases that underwent PLB was evaluated by comparing SWE and Ishak-Knodell grades. Methods: CH cases were divided into three groups based on the presence of HS on biopsy and the percentage of HS (none, <10%, or ≥10%). Ishak-Knodell fibrosis grades and SWE values in kilopascal (kPa) were available for all included cases. Fibrosis scores and kPa values were compared within themselves and between groups for all three groups. Whether steatosis affected kPa results within the same fibrosis grades was evaluated. Results: There were 236 patients with CH: 109 (46.2%) had HS on liver biopsy, and 127 (53.8%) did not. Among the 109 patients with HS, 78 (71.5%) had pathological steatosis ≥ 10%. In all Ishak and Knodell grades (except F3), there was no significance between the liver stiffness values (kPa) of those with ≥10% HS and those with HS < 10%/none (p > 0.05). For the Ishak-Knodell F3 grade, there was a significant difference in both comparisons (p < 0.05). Conclusions: Liver kPa results are compatible with fibrosis grades, and SWE can be easily applied in the follow-up of CH patients with HS. In this way, unnecessary invasive procedures are prevented, and patient comfort can be maintained.
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