Table 3. Diagnostic performance of preliminary models to predict malignant IPMN pathology in the study cohort.
| Modela | Variables included | AUC (95% CI) |
Sensitivity | Specificity | Positive predictive value | Negative predictive value |
|---|---|---|---|---|---|---|
| Demographic and clinical data | Age at diagnosis, gender, presence of symptoms | 0.73 (0.56-0.89) |
0.83 | 0.55 | 0.63 | 0.79 |
| Standard imaging data | High risk stigmata | 0.84 (0.72-0.96) |
0.83 | 0.85 | 0.83 | 0.85 |
| Genomic data | 5-miRNA genomic classifier (MGC) | 0.83 (0.69-0.97) |
0.78 | 0.80 | 0.78 | 0.80 |
| Standard imaging + genomic data | High risk stigmata, MGC |
0.95 (0.88-1.00) |
0.94 | 0.90 | 0.89 | 0.95 |
| Standard imaging data | Worrisome features | 0.54 (0.38-0.69) |
0.72 | 0.35 | 0.50 | 0.58 |
| Standard imaging + genomic data | Worrisome features, MGC |
0.83 (0.69-0.97) |
0.83 | 0.80 | 0.79 | 0.84 |
| Radiomic data | Radiomic PC1 classifier | 0.77 (0.61-0.93) |
0.83 | 0.74 | 0.75 | 0.82 |
| Radiomic + genomic data | Radiomic PC1 classifier + MGC |
0.92 (0.83-1.00) |
0.83 | 0.89 | 0.88 | 0.85 |
| Standard imaging+ radiomic+ genomic data | Worrisome features, Radiomic PC1 classifier + MGC |
0.93 (0.85-1.00) |
0.89 | 0.89 | 0.89 | 0.89 |
a Full models include 20 benign and 18 malignant IPMNs.