Value of intravoxel incoherent motion and diffusion kurtosis imaging to differentiate hepatocellular carcinoma and intrahepatic cholangiocarcinoma

Table 3 Receiver operating characteristic analysis of standard apparent diffusion coefficient, pure diffusion coefficient, mean diffusion coefficient and mean kurtosis coefficient for the prediction and diagnostic performance in the hepatocellular carcinoma and intrahepatic cholangiocarcinoma groups

	Area under the receiver operating characteristic curve	Cutoff	Youden index	Sensitivity	Specificity	95%CI
Standard apparent diffusion coefficient	0.874	1.25	0.6239	95	67.39	0.769–0.943
Pure diffusion coefficient	0.793	1.32	0.4957	80	69.57	0.676–0.883
Mean kurtosis coefficient	0.733	650.2	0.5739	90	67.39	0.609–0.834
Mean diffusion coefficient	0.757	1.41	0.4348	100	43.48	0.635–0.854
All	0.895	0.46	0.6348	70	93.38	0.794–0.957