Table 3.
Comparison and diagnostic performance of parameters between benign and malignant myxoid soft tissue tumors
| Parameter | Benign group | Malignant group | p- value | Cut-off values | Sensitivity (%) | Specificity (%) | Accuracy (%) | AUC |
|---|---|---|---|---|---|---|---|---|
| IVIM DWI | n = 11 | n = 8 | ||||||
| D (µm2/s) | 1623 ± 466 | 1687 ± 565 | 0.791 | ≤1416 | 50 (4/8) | 63 (7/11) | 57 (11/19) | 0.511 |
| Da (µm2/s) | 268 ± 38 | 232 ± 44 | 0.077 | ≤233 | 50 (4/8) | 81 (9/11) | 68 (13/19) | 0.739 |
| f (%) | 77 ± 46 | 68 ± 34 | 0.662 | ≤65.5 | 75 (6/8) | 54 (6/11) | 63 (12/19) | 0.545 |
| ADC (µm2/s) | 1656 ± 438 | 1720 ± 524 | 0.776 | ≤1407 | 50 (4/8) | 81 (9/11) | 68 (13/19) | 0.545 |
| DCE-MRI | n = 11 | n = 8 | ||||||
| Ktrans (min−1 × 103) | 63 ± 37 | 122 ± 73 | 0.035a | >110 | 62 (5/8) | 100 (11/11) | 84 (16/19) | 0.744 |
| Kep(min−1 × 103) | 262 ± 279 | 454 ± 279 | 0.158 | >220 | 87 (7/8) | 63 (7/11) | 73 (14/19) | 0.750a |
| Ve (%) | 57 ± 35 | 34 ± 14 | 0.100 | ≤43 | 87 (7/8) | 63 (7/11) | 73 (14/19) | 0.693 |
| iAUC (%) | 8 ± 5 | 17 ± 12 | 0.037a | >14 | 62 (5/8) | 90 (10/11) | 78 (15/18) | 0.761a |
AUC, area under the curve;DCE-MRI, Dynamic contrast enhanced magnetic resonance imaging; IVIM DWI, intravoxel incoherent motion diffusion-weighted imaging
All data are means (±standard deviation).
a
indicates the statistical significance.