Table 1.
Features of indicators for benign and malignant breast masses
| Indicatorsa | Benign lesions (n = 23) | Malignant lesions (n = 31) | p values | |||
|---|---|---|---|---|---|---|
| DCE-MRI | ||||||
| IER, % | 167.98 ± 45.56 | 230.09 ± 34.50 | < 0.001 | |||
| TIC, n (%) | < 0.001 | |||||
| Type I | 18 (78.26) | 3 (9.68) | < 0.001 | |||
| Type II | 4 (17.39) | 6 (19.35) | 0.854 | |||
| Type III | 1 (4.35) | 22 (70.97) | < 0.001 | |||
| DW-MRI | ||||||
| ADC0,1000 ≤ 1.09 (× 10-3 mm2/s) | 1.22 ± 0.20 | 1.03 ± 0.14 | < 0.001 | |||
| ADC50,800 ≤ 1.10 (× 10-3 mm2/s) | 1.24 ± 0.21 | 1.04 ± 0.15 | < 0.001 | |||
| IVIM | ||||||
| D (× 10-3 mm2/s) | 1.32 ± 0.15 | 0.91 ± 0.15 | < 0.001 | |||
| D* (× 10-3 mm2/s) | 45.46 ± 25.25 | 26.54 ± 21.91 | 0.005 | |||
| f, % | 15.16 ± 9.90 | 21.18 ± 7.84 | 0.016 | |||
a
Unless otherwise indicated, continuous data are presented as the mean ± standard deviation.
DCE-MRI = Dynamic contrast-enhanced magnetic resonance imaging; IER = initial enhancement ratio; TIC = time-signal intensity curve; DW-MRI = diffusion-weighted magnetic resonance imaging; ADC = apparent diffusion coefficient; IVIM = intravoxel incoherent motion; D = tissue diffusivity;
*
D* = pseudodiffusivity; f= perfusion fraction.