Table 4 Differentiation capability of ADC value for MRI-detectable benign and malignant breast diseases ( n = 49)
b value (s/mm 2 ) | Mean ADC of benign disease (×10 −3 mm 2 /s) | Mean ADC of malignant disease (×10 −3 mm 2 /s) | Sensitivity | Specificity | Positive predictive value | Positive likelihood ratio |
|---|---|---|---|---|---|---|
400 | 1.85 ± 0.86 | 1.36 ± 0.53 | 82.8% | 90.0% | 92.3% | 8.28 |
600 | 1.79 ± 1.03 | 1.21 ± 0.45 | 86.2% | 85.0% | 86.2% | 5.74 |
800 | 1.66 ± 0.90 | 1.11 ± 0.37 | 82.8% | 90.0% | 92.3% | 8.28 |