Gadoxetic acid-enhanced magnetic resonance imaging can predict the pathologic stage of solitary hepatocellular carcinoma

Table 2 Imaging characteristics compared between the pathologic stage T2 group and T1 group, n (%)

Characteristics	pT2, n = 39	pT1, n = 75	P value
T2 hyperintensity	37 (94.9)	68 (90.7)	0.716
T1 hypointensity	35 (89.7)	69 (92.0)	0.733
Arterial enhancement	38 (97.4)	70 (93.3)	0.662
Corona enhancement	14 (35.9)	13 (17.3)	0.037
Washout appearance	36 (92.3)	69 (92.0)	1.000
Capsular appearance	14 (35.9)	38 (50.7)	0.167
Hypointensity of tumor in the HB phase	37 (94.9)	74 (98.7)	0.269
Peritumoral hypointensity in the HB phase	16 (41.0)	18 (24.0)	0.084
Hypointense-rim in the HB phase	5 (12.8)	21 (28.0)	0.099
Intratumoral fat	8 (20.5)	18 (24.0)	0.815
Hyperintensity on DWI	39 (100.0)	72 (96.0)	0.550
Hypointensity on ADC map	16 (41.0)	32 (42.7)	1.000
Mosaic architecture	27 (69.2)	48 (64.0)	0.679
Margin type			0.503
Smooth	27 (69.2)	57 (76.0)
Irregular	12 (30.8)	18 (24.0)
AJCC v.7	39 (100.0)	75 (100.0)
AJCC v.8			0.005
cT1a (≤ 2 cm)	3 (7.7)	24 (32.0)
cT1b (> 2 cm)	36 (92.3)	51 (68.0)

HB: Hepatobiliary; DWI: Diffusion weighted imaging; ADC: Apparent diffusion coefficient; AJCC: American Joint Committee on Cancer; pT1: Pathologic stage T1; pT2: Pathologic stage T2.