Table 4 Receiver operating characteristics curve (ROC) curve for prediction of malignant nodules by pre-, peak & net enhancement
From: The role of dynamic contrast-enhanced CT in characterization of solitary solid pulmonary nodules
AUC | 95% CI | Cutoff | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) | |
|---|---|---|---|---|---|---|---|---|
Pre | 0.898 | 0.77–1.02 | 26.50 | 93.8 | 75 | 93.7 | 75 | 90 |
After 2 min (peak) | 0.990 | 0.97–1.01 | 40.00 | 96.9 | 87.5 | 96.9 | 87.5 | 95 |
Net | 0.986 | 0.96–1.01 | 19.00 | 96.9 | 87.5 | 96.9 | 87.5 | 95 |