Clinical Value Study on Contrast-Enhanced Ultrasound Combined with Enhanced CT in Early Diagnosis of Primary Hepatic Carcinoma

Table 2

Performance of contrast-enhanced ultrasound.

Groups	Enhancement time (s)	Regression time (s)	Enhancement pattern of photography
			Fast in fast out	Fast in same out
Malignant group (n = 70)	17.57 ± 3.07	83.17 ± 10.23	32 (45.71)	38 (54.29)
Benign group (n = 14)	7.64 ± 3.04	230.71 ± 11.48	6 (42.86)	8 (57.14)
t/X^2	11.065	48.279	1.090
	<0.001	<0.001	0.296