BMC Medical Imaging

Table 2 Comparison of features on C-CEUS and H-CEUS in malignant and benign groups*

From: Characteristics of high frame frequency contrast-enhanced ultrasound in renal tumors

	malignant(n = 99)				benign(n = 41)
	C-CEUS	H-CUES	χ²	p Value	C-CEUS	H-CUES	χ²	p Value
Enhancement mode
Earlier enhancement	68	64	4.003	0.135	5	6	0.158	0.924
Equal enhancement	12	6			8	7
Slower enhancement	19	29			28	28
Regression mode
Faster regression	39	47	6.782	0.034	5	1	2.940	0.230
Equal regression	6	0			3	4
Slower regression	54	52			33	36
Peak intensity
High enhancement	73	67	3.940	0.139	14	10	1.288	0.525
Equal enhancement	7	3			5	4
Low enhancement	19	29			22	27
Homogeneity
Homogeneous	21	19	0.125	0.723	28	15	8.264	0.004
Heterogeneous	78	80	0.125	0.723	13	26	8.264	0.004
No enhancement
Yes	76	77	0.029	0.865	7	6	0.091	0.762
No	23	22	0.029	0.865	34	35	0.091	0.762
Fill-in direction
Centripetal	40	66	13.771	0.001	15	22	2.649	0.266
Entirety	49	28			22	15
Centrifugal	10	5			4	4
Boundary after enhancement
Clear	95	96	0.148	0.700	41	40	1.012	0.314
Unclear	4	3	0.148	0.700	0	1	1.012	0.314
Range of enhancement
Enlarged	4	3	0.148	0.700	0	1	1.012	0.314
Unenlarged	95	96	0.148	0.700	41	40	1.012	0.314
Pseudocapsule
Yes	82	81	0.035	0.852	9	6	0.734	0.391
No	17	18	0.035	0.852	32	35	0.734	0.391

*Data represent number of nodules

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ISSN: 1471-2342

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