Ultrasound Liver Imaging Reporting and Data System (US LI-RADS): An Overview with Technical and Practical...

Area of Science:

• Radiology
• Hepatology
• Medical Imaging

Background:

• Hepatocellular carcinoma (HCC) is a primary liver cancer often detected in patients with cirrhosis or chronic hepatitis B.
• Early detection through screening and surveillance is crucial for improving patient outcomes.
• Standardized reporting systems are needed to improve the consistency and accuracy of diagnostic imaging.

Purpose of the Study:

• To review the development and implementation of the Ultrasound Liver Imaging Reporting and Data System (US LI-RADS).
• To provide guidance on the technique, interpretation, and reporting of screening ultrasounds for HCC.
• To analyze preliminary outcomes and the impact of US LI-RADS on patient management.

Main Methods:

• Review of the US LI-RADS framework, including its categorization and scoring system.
• Discussion of screening and surveillance populations eligible for US LI-RADS.
• Compilation of recommendations for optimal ultrasound technique, interpretation, and reporting.

Main Results:

• US LI-RADS categorizes ultrasound exams as negative, subthreshold, or positive, guiding subsequent management.
• Visualization scores assess the reliability of the ultrasound examination based on liver visibility.
• Implementation of US LI-RADS has been adopted by multiple institutions for HCC surveillance.

Conclusions:

• US LI-RADS offers a standardized approach to ultrasound for HCC detection in high-risk individuals.
• The system aims to enhance the sensitivity and consistency of liver ultrasound interpretation.
• Further analysis of outcomes will refine the role of US LI-RADS in HCC management.