Deep learning applied to the imaging diagnosis of hepatocellular carcinoma

Table 1 Liver imaging reporting and data system classification[13]

Category	Description
LR-1	Definitely benign
LR-2	Probably benign
LR-3	Intermediate probability of HCC
LR-4	High probability of HCC, not 100%
LR-5	Definitely HCC
LR-5V	Definite venous invasion regardless of other imaging features
LR treated	LR-5 lesion status post-locoregional treatment
LR-M	Non-HCC malignancies that may occur in cirrhosis: metastases, lymphoma, cholangiocarcinoma, PTLD

HCC: Hepatocellular carcinoma; PTLD: Post-transplant lymphoproliferative disorder.