Radiomic analysis based on multi-phase magnetic resonance imaging to predict preoperatively microvascular invasion in hepatocellular carcinoma

Table 1 Comparison of patient characteristics according to microvascular invasion

Characteristic	MVI+ (n = 73)	MVI- (n = 40)	P value
Age (yr)1	56.82 ± 13.38	57.50 ± 11.98	0.790
Gender, n (%)			0.374
Male	57 (78.1)	34 (85.0)
Female	16 (21.9)	6 (15.0)
Tumor number, n (%)			0.152
1	58 (79.5)	36 (90.0)
≥ 2	15 (20.5)	4 (10.0)
AFP, n (%)			0.023
≤ 20	23 (31.5)	23 (57.5)
20-400	22 (30.1)	9 (22.5)
> 400	28 (38.4)	8 (20.0)
HBsAg, n (%)			0.267
Negative	13 (17.8)	4 (10.0)
Positive	60 (82.2)	36 (90.0)
Pathologic grade, n (%)			0.042
Well	0 (0.0)	1 (2.5)
Moderate	39 (53.4)	28 (70.0)
Poor	34 (46.6)	11 (27.5)
Location, n (%)			0.891
Left lobe	21 (28.8)	13 (32.5)
Right lobe	51 (69.9)	27 (67.5)
Caudate lobe	1 (1.3)	0 (0.0)

¹Data are the mean ± SD.

AFP: Alpha-fetoprotein; HBsAg: Hepatitis B surface antigen; MVI: Microvascular invasion.