Table 2 Quantitative and qualitative parameters of breast CEUS according to the type of the tumor
From: Prospective evaluation of contrast-enhanced ultrasound of breast BI-RADS 3–5 lesions
Benign lesions (n = 146) | Malignant lesions (n = 67) | p-value | |||
|---|---|---|---|---|---|
Quantitative parameters | |||||
TTP (s) | < 0.001 | ||||
mean/ median/ range | 29/ 25/ 4–152 | 20/ 18/ 4–70 | |||
WIS (dB/s) | < 0.001 | ||||
mean/ median/ range | 0.13/ 0.04/ 0–1.64 | 0.24/ 0.14/ 0–1.63 | |||
PI (dB) | 0.105 | ||||
mean/ median/ range | 2.8/ 2/ 0.1–10.5 | 2.9/ 2.8/ 0–8.6 | |||
AUC (dB.s) | 0.711 | ||||
mean/ median/ range | 149/ 102/ 5–602 | 142/ 126/ 1–492 | |||
Qualitative parameters | n = 146 | % | n = 67 | % | |
Type of vascularization | 0.117 | ||||
peripheral | 117 | 80% | 47 | 70% | |
peripheral + central | 29 | 20% | 20 | 30% | |
Perfusion homogeneity | 0.234 | ||||
homogeneous | 12 | 8% | 2 | 3% | |
heterogeneous | 134 | 92% | 65 | 97% | |
Enhancement degree | < 0.001 | ||||
poor/absent | 71 | 48.6% | 7 | 10.4% | |
intermediate | 47 | 32.2% | 23 | 34.3% | |
rich | 28 | 19.2% | 37 | 55.2% | |