Table 2.
Diagnostic accuracy of preoperative localization studies in 88 patients in the study.
| Diagnostic study | No. (%) | PPV | Sensitivity |
|---|---|---|---|
| Ultrasound | 88 (100.0) | 72.4 | 60.5 |
| 99mTc-MIBI scintigraphy | 88 (100.0) | 88.2 | 85.1 |
| CT | 27 (30.7) | 53.1 | 49.4 |
| SVS | 3 (3.4) | 100.0 | NC |
| US-guided FNA + iPTH assay in the aspirate | 4 (4.5) | 100.0 | NC |
PPV – positive predictive value; SVS – selective venous sampling with iPTH measurements; CT – computed tomography; US – ultrasound; FNA – fine-needle aspiration; iPTH – intact parathoromone; NC – not calculated.