Table 3.
Diagnostic results of original and revised reports of imaging in 20 patients with early (< 14 days of symptoms) and late (> 14 days of symptoms) stage of vertebral osteomyelitis
| MRI | 18F–FDG-PET/CT | |||
|---|---|---|---|---|
| Original report | Revised report | Original report | Revised report | |
| < 14 days | ||||
| Sensitivity | 77.8% (40.0–97.2) | 100% (66.4–100) | 100% (66.4–100) | 100% (66.3–100) |
| Specificity | 83.3% (35.9–99.6) | 100% (54.1–100) | 100% (54.1–100) | 83.3% (35.9–99.6) |
| PPV | 87.5% (53.1–97.7) | 100% (70.1–100) | 100% (70.1–100) | 90.0% (60.1–98.2) |
| NPV | 71.4% (41.6–89.9) | 100% (61.0–100) | 100% (61.0–100) | 100% (56.6–100) |
| > 14 days | ||||
| Sensitivity | 100% (71.5–100) | 100% (71.5–100) | 100% (71.5–100) | 100% (71.5–100) |
| Specificity | 83.3% (35.9–99.6) | 83.3% (35.9–99.6) | 83.3% (35.9–99.6) | 83.3% (35.9–99.6) |
| PPV | 91.7% (64.8–98.5) | 91.7% (64.8–98.5) | 91.7% (64.8–98.5) | 91.7% (64.8–98.5) |
| NPV | 100% (56.6–100) | 100% (56.6–100) | 100% (56.6–100) | 100% (56.6–100) |