Accuracy of Various Scintigraphy Procedures in Osteomyelitis Diagnosis
Procedure | True-positive (n) | False-positive (n) | True-negative (n) | False-negative (n) | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) |
3-phase 99mTc-MDP | 10 | 6 | 7 | 0 | 100 | 53.8 | 62.5 | 100 |
5-h 99mTc-IgG | 10 | 4 | 9 | 0 | 100 | 69.2 | 71 | 100 |
24-h 99mTc-IgG | 6 | 3 | 10 | 4 | 60 | 76.9 | 66.6 | 71.4 |
PPV = positive predictive value; NPV = negative predictive value.