title: Understanding LI-RADS: a primer for practical use.
abstract: The Liver Imaging-Reporting and Data System (LI-RADS) is a comprehensive system for standardized interpretation and reporting of computed tomography and magnetic resonance examinations performed in patients at risk for hepatocellular carcinoma. LI-RADS includes a diagnostic algorithm, lexicon, and atlas as well as suggestions for reporting, management, and imaging techniques. This primer provides an introduction to LI-RADS for radiologists including an explanation of the diagnostic algorithm, descriptions of the categories, and definitions of the major imaging features used to categorize observations with case examples.
authors.affiliation: Department of Radiology, University of California San Diego, 200 West Arbor Drive, San Diego, CA 92130, USA.
authors.forename: Cynthia S
authors.initials: CS
authors.lastname: Santillan
authors.affiliation: Department of Radiology, Hôpital Saint-Luc, Centre de recherché du Centre hospitalier de l'Université de Montréal, Université de Montréal, 1058 Saint-Denis, Montréal, Québec H2X 3J4, Canada.
authors.forename: An
authors.initials: A
authors.lastname: Tang
authors.affiliation: Department of Radiology, University of Washington Medical Center, 1959 Northeast Pacific Street, Seattle, WA 98195-6113, USA.
authors.forename: Irene
authors.initials: I
authors.lastname: Cruite
authors.affiliation: Liver Imaging Group, Department of Radiology, University of California San Diego, 200 West Arbor Drive, San Diego, CA 92130, USA.
authors.forename: Amol
authors.initials: A
authors.lastname: Shah
authors.affiliation: Liver Imaging Group, Department of Radiology, University of California San Diego, 200 West Arbor Drive, San Diego, CA 92130, USA. Electronic address: csirlin@ucsd.edu.
authors.forename: Claude B
authors.initials: CB
authors.lastname: Sirlin
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000175:diagnosis*; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging* / Q000473:pathology*; D008113:Liver Neoplasms / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods; D011873:Radiology Information Systems; D014057:Tomography, X-Ray Computed / Q000379:methods
keywords: Hepatocellular carcinoma; LI-RADS; Liver; Magnetic resonance imaging