Table 4.
Diagnostic accuracy measures of MRI and CT as first imaging study in 2010–2017.
| Sensitivity | Specificity | PPV | NPV | Positive LR | Negative LR | |
|---|---|---|---|---|---|---|
| Pancreatic head | ||||||
| MRI | 65.2 (44.8–81.3) | 100 (92.1–100) | 100 (76.1–100) | 87.1 (76.3–93.6) | Inf | 0.35 (0.20–0.61) |
| CT | 27.3 (9.2–57.1) | 90.5 (69.9–98.6) | 60.0 (22.9–88.4) | 70.4 (51.3–84.3) | 2.86 (0.56–14.7) | 0.80 (0.55–1.18) |
| Pancreatic body/tail | ||||||
| MRI | 75.0 (56.4–87.6) | 95.9 (85.5–99.6) | 91.3 (72.0–98.8) | 87.0 (75.3–93.9) | 18.4 (4.7 – 72.6) | 0.26 (0.14–0.50) |
| CT | 77.8 (54.3–91.5) | 100 (74.9–100) | 100 (74.9–100) | 77.8 (54.3–91.5) | Inf | 0.22 (0.09–0.53) |
95% CIs are given in parentheses.
CT, computed tomography; LR, likelihood ratio; MRI, magnetic resonance imaging; NPV, negative predictive value; PPV, positive predictive value.