Table 2 Screening accuracy based on a per-patient analysis was determined by reading each patient’s in-plane and multiplanar images for 10 seconds and diagnostic accuracy based on a per-rib analysis was determined for reading in-plane images without time constraint
Ten-second screening accuracy on a per-patient analysis | Diagnostic reading accuracy on a per-rib analysis (no time constraint) | ||
|---|---|---|---|
In-plane reading | Multiplanar reading | In-plane reading | |
True positives | 23 | 14 | 226 |
True negatives | 10 | 37 | 993 |
False positives | 27 | 0 | 77 |
False negatives | 0 | 9 | 5 |
Sensitivity | 100 % (82.1–100 %) | 60.9 % (38.8–79.5 %) | 97.8 % (94.7–99.2 %) |
Specificity | 27.0 % (14.4–44.4 %) | 100 % (88.3–100 %) | 92.8 % (91.0–94.2 %) |
Positive predictive value | 46.0 % (32.1–60.5 %) | 100 % (73.2–100 %) | 74.6 % (69.2–79.3 %) |
Negative predictive value | 100 % (65.5–100 %) | 80.4 % (65.6–90.1 %) | 99.5 % (98.8–99.8 %) |