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

Hailey H. Choi*, Shuchi K. Rodgers, David T. Fetzer, Ashish P. Wasnik, John D. Millet, Tara A. Morgan, Adrian Dawkins, Helena Gabriel, Aya Kamaya

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

3 Scopus citations


The Ultrasound Liver Imaging Reporting and Data System (US LI-RADS), introduced in 2017 by the American College of Radiology, standardizes the technique, interpretation, and reporting of screening and surveillance ultrasounds intended to detect hepatocellular carcinoma in high-risk patients. These include patients with cirrhosis of any cause as well as subsets of patients with chronic hepatitis B viral infection. The US LI-RADS scheme is composed of an ultrasound category and a visualization score: ultrasound categories define the exam as negative, subthreshold, or positive and direct next steps in management; visualization scores denote the expected sensitivity of the exam, based on adequacy of liver visualization with ultrasound. Since its introduction, multiple institutions across the United States have implemented US LI-RADS. This review includes a background of hepatocellular carcinoma and US LI-RADS, definition of screening/surveillance population, recommendations and tips for technique, interpretation, and reporting, and preliminary outcomes analysis.

Original languageEnglish (US)
Pages (from-to)1464-1476
Number of pages13
JournalAcademic radiology
Issue number10
StatePublished - Oct 2021


  • Hepatocellular carcinoma
  • Liver
  • Screening and surveillance
  • Ultrasound

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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