Released July 2018 – LI-RADS version 2018 provides updated criteria for small (10-19 mm) LR-5 observations and a simplified definition for threshold growth. These updates represent a critical milestone by achieving consistency with and integration into the American Association for the Study of Liver Diseases (AASLD) 2018 hepatocellular carcinoma (HCC) clinical practice guidance.

Although our intended update cycle is every 3 to 4 years, the recent unification of LI-RADS with AASLD necessitated the expedited release of version 2018.

LI-RADS® v2018 Core


LI-RADS Translations CT/MRI v2018

Translations and Translation Credits are available for download below:

Translation Credits   Italian LI-RADS v2018 Core
Chinese (Simplified) LI-RADS v2018 Core   Japanese LI-RADS v2018 Core
Chinese (Traditional) LI-RADS v2018 Core   Korean LI-RADS v2018 Core
French LI-RADS v2018 Core   Portuguese LI-RADS v2018 Core
German LI-RADS v2018 Core   Spanish LI-RADS v2018 Core
Farsi LI-RADS v2018 Core   Vietnamese LI-RADS v2018 Core


ACR disclaims liability for any acts or omissions that occur related to an individual's or entity's use of ACR's RADS, including but not limited to, translations of a specific RADS work.

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LI-RADS Manual

Chapter 1 – LI-RADS Introduction — What, Mission, Vision

Chapter 2 – LI-RADS screening surveillance diagnosis staging

Chapter 3 – Liver Anatomy

Chapter 4 – Cirrhosis

Chapter 5 – Cirrhosis- associated lesions

Chapter 6 – Hepatocarcinogenesis

Chapter 7 – The LI-RADS observation

Chapter 8 – LI-RADS Diagnostic categories

Chapter 9 – Treatment Response

Chapter 10 – Staging

Chapter 11 – Management

Chapter 12 – LI-RADS Technique

Chapter 13 – HBA

Chapter 14 – LI-RADS Reporting

Chapter 15 – Benign entities

Chapter 16 – Imaging features