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

Table 5 Univariate analysis of risk factors for most discriminant factors and patient characteristic

Variable	OR	95%CI	P value
MDFT1	11.200	4.346-28.861	< 0.001a
MDFT2	6.066	2.334-15.765	< 0.001a
MDFAP	8.552	2.967-24.650	< 0.001a
MDFPVP	0.050	0.017-0.143	< 0.001a
MDFEP	0.095	0.037-0.244	< 0.001a
MDFHBP	8.800	3.222-24.032	< 0.001a
MTD	1.351	1.146-1.593	< 0.001a
AFP	3.818	1.375-10.605	0.028a
Pathologic grade			0.105
Arterial rim enhancement	5.683	1.977-16.340	0.001a
Arterial peritumoral enhancement			0.215
Tumor margin	4.024	1.555-10.414	0.004a
Radiological capsule			0.275
Tumor hypointensity in HBP			0.215
Peritumoral hypointensity in HBP	52.000	11.287-239.569	< 0.001a

^aP < 0.05, statistically significant results from logistic regression analysis. Variables with ^aP < 0.05 in univariate logistic regression analysis were applied to a multivariate logistic regression analysis.

MDF: Most discriminant factor; AFP: Alpha-fetoprotein; AP: Arterial phase; CI: Confidence interval; EP: Equilibrium phase; HBP: Hepatobiliary phase; MTD: Maximum tumor diameter; OR: Odds ratio; PVP: Portal venous phase.