Table 4.
Sensitivity, specificity, positive and negative predictive value, accuracy and AUC for the prediction of LN group metastasis by 68Ga-DOTANOC and 18F-FDG PET through semiquantitative assessment.
| 68Ga-DOTANOC PET | 18F-FDG PET | p value | |
|---|---|---|---|
| Sensitivity (%) (95% CI) | 77.78 (52.36-93.59) | 61.11 (35.75-82.70) | 0.278 |
| Specificity (%) (95% CI) | 91.67 (73.00-98.97) | 75.00 (53.29-90.23) | 0.121 |
| PPV (%) (95% CI) | 87.50 (64.48-96.43) | 64.71 (45.54-80.08) | 0.127 |
| NPV (%) (95% CI) | 84.62 (69.68-92.94) | 72.00 (57.96-82.75) | 0.274 |
| Accuracy (%) (95% CI) | 85.71 (71.46-94.57) | 69.05 (52.91-82.38) | 0.015 |
| AUC (95% CI) | 0.852 (0.723-0.981) | 0.664 (0.485-0.844) | 0.0583 |
PPV, positive predictive value; NPV, negative predictive value; AUC, Area under ROC curve.