Table 4.
Diagnostic performance to differentiate between ductal carcinoma in situ (DCIS) and invasive ductal carcinoma (IDC) using percentile ADC values of EPI-DWI
| (× 106 mm2/s) | DCIS (n = 20) | IDC (n = 74) | ICC | P-value | AUC |
|---|---|---|---|---|---|
| 10th percentile | 786 ± 323 | 723 ± 286 | 0.70 (0.48, 0.83) | 0.43 | N/A |
| 25th percentile | 1063 ± 234 | 915 ± 252 | 0.67 (0.44, 0.81) | 0.012 | N/A |
| 50th percentile | 1322 ± 238 | 1108 ± 256 | 0.75 (0.57, 0.86) | 0.0009* | 0.74 |
| 75th percentile | 1549 ± 298 | 1344 ± 281 | 0.75 (0.58, 0.86) | 0.0093* | 0.69 |
| 90th percentile | 1761 ± 333 | 1604 ± 344 | 0.75 (0.57, 0.86) | 0.052 | N/A |
Data was expressed as means ± standard deviation.