Table 4. Comparison of velocity histogram patterns and mean velocity of HCC, non-HCC malignancy, and benign tumors on CEUS with CVI.

	HCC (n = 19)	Non-HCC malignancy (n = 13)	Benign (n = 20)	P-value
Velocity histogram				0.280
Variable velocity	14 (73.7%)	6 (46.2%)	12 (60.0%)
Low velocity (< 60 mm/s)	5 (26.3%)	7 (53.8%)	8 (40.0%)
Mean velocity (mm/s)	26.3 ± 9.9	20.6 ± 2.3	24.7 ± 7.3	<0.001

Note.—HCC = hepatocellular carcinoma; CEUS = contrast-enhanced ultrasonography; CVI = contrast vector imaging.

Significant p-values are indicated in bold.