Table 2.
Parameters | Characteristics | ECE | P value | |
---|---|---|---|---|
Yes (n = 57) | No (n = 52) | |||
The degree of contrast agent distribution | Diffuse heterogeneous enhancement | 28 | 22 | |
Diffuse homogeneous enhancement | 9 | 10 | 0.762 | |
Dotted enhancement | 20 | 20 | ||
Border type | Well-defined border | 23 | 23 | 0.682 |
Ill-defined border | 34 | 29 | ||
Enhancement degree | Hypoenhancement | 47 | 42 | |
Isoenhancement | 9 | 9 | 0.975 | |
Hyperenhancement | 1 | 1 | ||
RT(sec) | 6.86 ± 5.33 | 9.92 ± 8.51 | 0.025 | |
TTP(sec) | 23.07 ± 8.42 | 27.67 ± 11.07 | 0.016 | |
PI(dB) | 7.67 ± 2.14 | 7.89 ± 2.16 | 0.593 | |
WIS(dB/sec) | 1.27 ± 0.59 | 0.91 ± 0.61 | 0.003 | |
TPH(sec) | 51.72 ± 15.33 | 76.85 ± 24.55 | 0.000 | |
AUC(dBsec) | 541.35 ± 200.87 | 675.16 ± 196.58 | 0.001 |
CEUS: contrast-enhanced ultrasound. ECE: extracapsular extension. RT: rise time. TTP: time to peak. PI: peak intensity. WIS: wash in slope. TPH: time from peak to one half. AUC: area under the curve.