Diagnostic value of high-frame-rate contrast-enhanced ultrasound and contrast vector imaging for superficial lymph node lesions

Table 1 Basic characteristics of 42 lymph node lesions

Characteristic	Malignant	Benign	χ² or t text	P-Value
Age	66 ± 14	52 ± 15	–3.02	0.004
Sex*			0.20	0.65
M	10	7
F	10	11
Node lesions maximum diameter (mm)	14.47 ± 6.94	16.56 ± 6.14	–0.70	0.49
power Doppler flow index	31.87 ± 15.18	11.70 ± 8.70	–3.45	0.001
Microvascular flow index	43.74 ± 9.18	20.39 ± 11.79	–3.44	0.001

Note: HFR CEUS = High-frame-rate contrast-enhanced ultrasound, CVI = contrast vector imaging
*Data are numbers of participants

ISSN: 1471-2407