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Hepatocellular Carcinoma in Evolution: Correlation with CEUS LI-RADS.
Stephanie A Nguyen1, Christina D Merrill1, David P Burrowes1
1From the Department of Radiology, University of Calgary, 1403 29 St NW, Calgary, AB, Canada T2N 2T9.
Summary
Hepatocellular carcinoma (HCC) diagnosis is improved using contrast-enhanced ultrasound (CEUS) and the Liver Imaging Reporting and Data System (LI-RADS). This approach aids in detecting early-stage liver cancer and risk stratification, potentially avoiding invasive biopsies.
Area of Science:
- Hepatobiliary imaging
- Oncology
- Radiology
Background:
- Hepatocellular carcinoma (HCC) is a prevalent liver cancer with high mortality.
- Risk factors include viral hepatitis, fatty liver disease, and cirrhosis.
- Progression from benign nodules to HCC involves vascular changes.
Purpose of the Study:
- To evaluate the role of contrast-enhanced ultrasound (CEUS) in diagnosing HCC.
- To assess the utility of the Liver Imaging Reporting and Data System (LI-RADS) in risk stratification of liver nodules.
- To demonstrate how vascular patterns on CEUS correlate with HCC progression.
Main Methods:
- Dynamic real-time contrast-enhanced ultrasound (CEUS) was used to assess liver nodules.
- Observed patterns of enhancement and washout were analyzed.
- The American College of Radiology Liver Imaging Reporting and Data System (LI-RADS) algorithm was applied for diagnosis and risk stratification.
Main Results:
- HCC typically exhibits arterial phase hyperenhancement with late washout on CEUS.
- LI-RADS categorizes nodules based on HCC likelihood, with LR-5 criteria being highly specific for HCC.
- CEUS and LI-RADS facilitate early detection and monitoring of potential HCC.
Conclusions:
- CEUS, guided by LI-RADS, is effective for diagnosing HCC and stratifying malignancy risk.
- This imaging approach can enable treatment decisions, potentially avoiding invasive liver biopsies.
- Understanding nodule vascularity patterns is crucial for accurate HCC detection and management.
