Correlation between serum calcium levels and dual‐phase ^99mTc‐sestamibi parathyroid scintigraphy in primary hyperparathyroidism

Abstract

(99m)Tc-MIBI parathyroid scintigraphy is most likely to yield identification and localization of a parathyroid adenoma when both PTH and calcium are elevated; however, although there is no lower limit of PTH which can predict a negative study, we cannot recommend (99m)Tc-MIBI parathyroid scintigraphy if the serum calcium is <2·51 mmol l(-1).