Research Article

99mTechnetium Sestamibi-123Iodine Scintigraphy Is More Accurate Than 99mTechnetium Sestamibi Alone before Surgery for Primary Hyperparathyroidism

Table 2

Accuracies of preoperative localization studies.

Planar scintigraphy with
99mTc-sestamibi
Planar scintigraphy with
123I-99mTc-sestamibi

Overall accuracy (95% CI)34.9% (29.2–40.6)63.4% (57.4–69.0)
Accuracy for one scintigraphic finding34.2% (28.5–40.2) 60.9% (54.9–66.8)
Accuracy in multiglandular disease*9.7% (0.6–18.8)14.6% (3.8–25.5)

P value < 0.001 between 123I-99mTc-sestamibi and 99mTc-sestamibi-scintigraphy.
*The scan revealed correctly all pathological glands without false negative findings.