Table 4 Specificity, sensitivity, PPV, NPV and Az value of the imaging features in the diagnosis of MCNs
Imaging features | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | Az value (95% CI) |
|---|---|---|---|---|---|
Body/tail location | 83.8% (65.5–93.9%) | 47.4% (31.3–64.0%) | 56.5% (41.2–70.8%) | 78.3% (55.8–91.7%) | 0.656 (52.7–78.6%) |
Round shape | 77.4% (58.5–89.7%) | 73.7% (56.6–86.0%) | 70.6% (52.3–84.3%) | 80.0% (62.5–90.9%) | 0.756 (63.7–87.4%) |
Thick wall | 67.7% (48.5–82.7%) | 76.3% (59.4–88.0%) | 70.0% (50.4–84.6%) | 74.4% (57.6–86.4%) | 0.720 (59.6–84.5%) |
0–2 septa | 64.5% (45.4–80.2%) | 71.1% (53.9–84.0%) | 64.5% (45.4–80.2%) | 71.1% (53.9–84.0%) | 0.678 (54.9–80.7%) |
Two features | 90.3% (73.1–97.4%) | 60.5% (43.5–75.5%) | 65.1% (49.0–78.5%) | 88.5% (68.7–97.0%) | 0.754 (63.8–87.1%) |
Three features | 77.4% (58.5–89.7%) | 84.2% (68.1–93.4%) | 80.0% (60.8–91.6%) | 82.1% (65.9–91.9%) | 0.808 (69.6–91.7%) |
Four features | 25.8% (12.5–44.9%) | 92.1% (77.5–97.9%) | 72.7% (39.3–92.7%) | 60.3% (46.6–72.7%) | 0.590 (45.2–72.7%) |