ACR releases LI-RADS updates

The American College of Radiology (ACR) has released the latest version of its Liver Imaging Reporting and Data System (LI-RADS) to standardize terminology and criteria in the interpretation and reporting of imaging examinations of the liver.

The classification system includes several modifications and enhancements compared to the previous version, including the following:

  • Unification of LI-RADS and United Network for Organ Sharing (UNOS) Organ Procurement and Transplantation Network (OPTN) categorization
  • Change from list format to algorithmic format for assignment of LI-RADS category codes
  • Expansion of the LI-RADS lexicon of terms
  • Incorporation of a comprehensive atlas that illustrates major and ancillary imaging features, as well as key lexicon terms
  • Incorporation of management implications for each liver reporting category
  • Incorporation of CT and MRI technical requirements

LI-RADS currently applies to patients with cirrhosis or those at risk for hepatocellular carcinoma.

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