Contrast-Enhanced Ultrasound in Residual Tumor of Hepatocellular Carcinoma following Transarterial Chemoembolization: Is It Helpful for Tumor Response?

Table 1

Clinical characteristics of patients in this study.

Clinical data	Number (%) (group 1/group 2)	Mean ±SD (range) (group 1/group 2)		p
Patients
Female	3 (7.0)/3 (10.0)			0.69
Male	40 (93.0)/27 (90.0)
Age (years)
group 1		56.1±7.9 (24-82)	1.51	0.07
group 2		53.9±1.1 (34-77)
HBs-Ag
positive	43 (100.0)/ 28 (93.3)			0.166
negative	0 (0)/2 (6.7)
Number of lesions per patient (group 1/group 2)
1	34 (79.1)/20 (66.7)		1.82	0.402
2	5 (11.6)/7 (23.3)
>2	4 (9.3)/3 (10.0)
The longest diameter of single HCC (cm)
<2	10 (23.3)/ 24 (80.0)	1.8±0.3/1.5±0.6	1.5	0.07
2–5	19 (44.2)/ 4 (13.3)	2.9±0.9/3.3±0.7	-0.83	0.21
>5	14 (32.5)/ 2 (6.7)	6.0±0.4/5.3±1.5	6.31	0.32
Aetiology of liver disease (group 1/group 2)
Alcoholic	0 (0)/2 (6.7)			0.166
Hepatitis B	43 (100.0)/28 (93.3)
Differentiation of HCC (group 1/group 2)
Well-differentiation	21 (48.8)/12 (40)		0.754	0.385
Moderate-poorly differentiation	22 (51.2)/18 (60)

: Fisher’s exact test.