Diagnostic Value of 18F-FDG and 18F-FLT for Prediction of Response According to Histology and Follow-up
| Timing of imaging | Tracer | Sensitivity | Specificity | Accuracy | PPV | NPV |
|---|---|---|---|---|---|---|
| After 1 chemotherapy cycle | 18F-FDG | 3/5 (60%) | 2/6 (33%) | 5/11 (45%) | 3/7 (43%) | 2/4 (50%) |
| 18F-FLT | 3/5 (60%) | 4/5 (80%) | 7/10 (70%) | 3/4 (75%) | 4/6 (67%) | |
| After end of chemotherapy | 18F-FDG | 1/5 (20%) | 6/6 (100%) | 7/11 (64%) | 1/1 (100%) | 6/10 (60%) |
| 18F-FLT | 0/5 (0%) | 5/5 (100%) | 5/10 (50%) | 0/0 (0%) | 5/10 (50%) |
PPV = positive predictive value; NPV = negative predictive value.