Preoperative ultrasonography parathyroid gland mapping can improve identification of normal parathyroid gland during thyroidectomy: A propensity score-matched case-control study.

Preoperative US PTG mapping identified two or more normal PTGs in the majority of adult patients undergoing total thyroidectomy. Those with preoperative mapping showed a higher number of intraoperatively identified normal PTGs, including inferior PTGs, compared to those without. This technique appears to enhance the intraoperative identification of normal PTGs, thereby potentially improving surgical outcomes in total thyroidectomy.