AFP and hepatocellular carcinoma: The results showed that AFP had an AUC of 0.690, a specificity of 100.00%, and a sensitivity of 45.45% in differentiating distant metastasis of HCC patients, whereas the AUCs of Ktrans and Kep in HCC patients and benign nodules were 0.711 and 0.742, with specificity of 100.00% and 100.00% and sensitivity of 45.45% and 55.55%, respectively.