Table 2
Variations in signal intensity of HCCs with lipiodol uptake on MRI according to size

Group	Signal intensity	T2WI	T1WI	DWI				GE
				b=0	b=50	b=400	b=800	In	Out
I (n=12)	High	6	2	4	5	5	3	5	2
	Iso	4	3	8	7	6	7	4	3
	Mixed	1	1	0	0	0	0	1	0
	Low	1	6	0	0	1	2	2	7
II (n=16)	High	8	2	9	10	10	8	10	0
	Iso	3	0	1	1	1	1	0	1
	Mixed	4	4	3	3	4	3	4	5
	Low	0	10	2	2	1	4	2	10

Group I was defined by a longest diameter of less than 2 cm, and group II was defined by a longest diameter of greater than or equal to 2 cm. One HCC in group II had no T2-WI, and another HCC in group II had no diffusion weighted images with b=0 value.
HCC, hepatocellular carcinoma; T2WI, T2-weighted images; T1WI, T1-weighted images; DWI, diffusion-weighted images; GE in, in-phase gradient-echo images; GE out, out-of-phase gradient-echo images.