Table II. Sensitivity and specificity of FDG-PET/CT and conventional imaging in diagnosing residual tumour by biopsy and predicting progressive disease or relapse.
Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) | |
---|---|---|---|---|
*FDG-PET for positive biopsy | 100 | 60 | 25 | 100 |
Conventional imaging for positive biopsy | 100 | 20 | 14 | 100 |
*FDG-PET for progressive disease or relapse | 100 | 69 | 50 | 100 |
Conventional imaging for progressive disease or relapse | 75 | 15 | 21 | 67 |
Abbreviations: FDG-PET/CT, 18F-labelled–fluorodeoxyglucose positron emission tomography with computerized tomography
Patient 9 had indeterminate findings on FDG-PET and was not included in this analysis.