Table 2.

Liver perfusion parameters and histogram parameters for patients with IMCCs and HCCs.

Group	Mean Value		± SD		P Value
	HCCs (n = 54)	IMCCs(n = 36)	HCCs (n = 54)	IMCCs (n = 36)
HAP (mean)	− 0.001	− 0.014	0.049	0.042	0.059
HAP (0.1)	− 0.018	− 0.034	0.057	0.059	0.062
HAP (0.25)	− 0.010	− 0.024	0.0532	0.051	0.072
HAP (0.5)	− 0.001	− 0.013	0.049	0.041	0.065
HAP (0.75)	0.007	− 0.002	0.044	0.035	0.064
HAP (0.9)	0.015	0.006	0.041	0.033	0.119
PVP (mean)	0.261	0.254	0.076	0.096	0.733
PVP (0.1)	0.188	0.155	0.077	0.094	0.079
PVP (0.25)	0.221	0.197	0.076	0.096	0.182
PVP (0.5)	0.260	0.250	0.077	0.099	0.609
PVP (0.75)	0.299	0.306	0.080	0.109	0.759
PVP (0.9)	0.335	0.356	0.084	0.122	0.389
AEF (mean)	0.594	0.536	0.124	0.120	0.001*
AEF (0.1)	0.511	0.420	0.089	0.116	< 0.001*
AEF (0.25)	0.548	0.475	0.091	0.090	< 0.001*
AEF (0.5)	0.587	0.518	0.107	0.083	< 0.001*
AEF (0.75)	0.630	0.567	0.140	0.080	0.005*
AEF (0.9)	0.678	0.616	0.198	0.102	0.040*
HAP(variance)	0.0002	0.0005	0.0003	0.002	0.607
HAP(skewness)	11.272	− 0.028	82.728	0.661	0.939
HAP(kurtosis)	130.846	3.674	936.972	1.360	0.329
PVP(variance)	0.004	0.008	0.003	0.010	0.009*
PVP(skewness)	6.122	0.257	44.687	0.645	0.121
PVP(kurtosis)	62.578	3.794	433.540	1.334	0.355
AEF(variance)	0.018	0.061	0.044	0.207	0.113
AEF(skewness)	1.597	3.295	4.107	7.032	0.435
AEF(kurtosis)	35.482	105.111	96.997	271.455	0.033*

*Statistically significant difference between the two groups (P < 0.05).

HAP hepatic artery perfusion (mL/100 mL/min), PVP portal vein perfusion (mL/100 mL/min), AEF arterial enhancement fraction (%), IMCC intrahepatic mass-forming cholangiocarcinoma, HCC hepatocellular carcinoma.