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

Figure 4 Similar histogram features but different most discriminant factors. A: Hepatocellular carcinoma without microvascular invasion and the feature derived from the portal venous phase (PVP); B: Hepatocellular carcinoma with microvascular invasion and features derived from the PVP. Case B showed similar histogram features but different most discriminant factors (MDF) compared with case A; C: Hepatocellular carcinoma without microvascular invasion and features derived from the arterial phase (AP); D: Hepatocellular carcinoma with microvascular invasion and features derived from the AP. Case D showed similar histogram features but different MDF compared with case C.