Threshold growth has a limited role in differentiating hepatocellular carcinoma from other focal hepatic lesions

BMC Medical Imaging

Table 5 Categories of observations

Category	LI-RADS v2018				Scheme A				Scheme B
Category	HCC	Non-HCC malignancy	Benign lesion	Total	HCC	Non-HCC malignancy	Benign lesion	Total	HCC	Non-HCC malignancy	Benign lesion	Total
LR-1	0	0	20	20	0	0	20	20	0	0	20	20
LR-2	3	2	11	16	3	2	11	16	3	2	11	16
LR-3	18	2	28	48	18	2	28	48	18	2	28	48
LR-4	35	5	16	56	36	5	16	57	32	5	16	53
LR-5	186	11	9	206	185	11	9	205	189	11	9	209
LR-M	8	68	4	80	8	68	4	80	8	68	4	80
Total	250	88	88	426	250	88	88	426	250	88	88	426

Scheme A: categories assigned using all MFs except threshold growth, which was treated as an AF favouring malignancy, not HCC in particular, while the other algorithms were consistent with those of the LI-RADS v2018; Scheme B, nodule-in-nodule architecture replaced threshold growth as a new MF, while the other algorithms were consistent with scheme A. HCC Hepatocellular carcinoma

ISSN: 1471-2342