The ACR website is the best site for LI-RADS related resources. The PDF presentation at the site is very comprehensive, and is used in the context-specific help for this application.

Additional links (some of the following may require subscription):

• LI-RADS: a case-based review of the new categorization of liver findings in patients with end-stage liver disease. RadioGraphics.
• Towards a standardized Liver Imaging Reporting and Data System for HCC diagnosis using CT and MRI: Overview of LI-RADS. Medscape Radiology.
• Standardized interpretation of HCC with LI-RADS. ICPME recorded webinar.
• Imaging-based diagnostic systems for hepatocellular carcinoma. AJR Am J Roentgenol.