MKI67 and hepatocellular carcinoma: In the high Ki-67 expression group, the DCE-US quantitative parameter FT and PE in the arterial phase were significantly different between the HCC lesions (21.9 ± 30.6 s, 1.3 × 108 ± 1.0 × 108 a.u, respectively) and the distal liver parenchyma (9.3 ± 36.5 s, 9.4 × 107 ± 9.2 × 107 a.u, respectively) (p = 0.016, p = 0.025, respectively).