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Diagnoses during additional parathyroidectomy.
| Imaging modality | TP | TN | FP | FN | Accuracy |
|---|---|---|---|---|---|
| CT | 7 | 0 | 0 | 0 | 100% |
| US | 2 | 0 | 0 | 5 | 28.6% |
| MIBI | 7 | 0 | 0 | 0 | 100% |
TP, true positive; TN, true negative; FP, false positive; FN, false negative; CT, computed tomography; US, ultrasonography; MIBI, Tc-99m sestamibi scan.
US shows significantly lower accuracy compared to the other two modalities.
