Table 3.
Comparison of results of estrogen receptor expression on 18F-fluoroestradiol positron emission tomography computed tomography and Immunohistochemistry
| Parameters | IHC ER +ve | IHC ER -ve | Result |
|---|---|---|---|
| FES PET CT +ve | 14 (TP) | 0 (FP) | PPV=100% |
| FES PET CT -ve | 2 (FN) | 8 (TN) | NPV=80% |
| Sensitivity=87.5% | Accuracy=91.66% |
IHC: Immunohistochemistry; ER: Estrogen receptor; FES: 18F-fluoroestradiol; PET: Positron emission tomography; CT: Computed tomography; PPV: Positive predictive value; NPV: Negative predictive value; TP: True positive; FN: False negative; FP: False positive; TN: True negative