Table 4.
Effectiveness of quantitative imaging features in the differentiation of prostate cancer from normal gland
| Test | AUC (%) | Pa | Maximum accuracy (%) | Cutoff value |
|---|---|---|---|---|
| RSI z-score | 93.6 (87.6–99.7) | 1 | 87.5 | 0.47 |
| ADC values | 84.8 (75.4–94.3) | 0.04 | 79.7 | 1253 mm2 s−1 |
| Ktrans | 79.2 (67.7–90.6) | 0.03 | 78.1 | 0.85 ml g−1 min−1 |
| kep | 74.0 (61.6–86.4) | 0.007 | 70.3 | 3.66 min−1 |
| νe | 77.9 (66.8–89.1) | 0.02 | 71.9 | 0.29 ml g−1 |
Abbreviation: AUC, area under the receiver-operating characteristic curve; MRI, magnetic resonance imaging; RSI, restriction spectrum imaging.
a
Each P-value compares the individual term AUC to RSI-MRI AUC.