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Related Experiment Videos

Sestamibi scan for preoperative localization in primary hyperparathyroidism

A R Shaha1, S Sarkar, A Strashun

  • 1Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.

Head & Neck
|March 1, 1997
PubMed
Summary

Technetium 99m sestamibi scans accurately localize parathyroid adenomas in primary hyperparathyroidism, aiding surgical planning. This noninvasive imaging is a valuable tool for preoperative localization.

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Area of Science:

  • Endocrinology
  • Nuclear Medicine
  • Surgical Oncology

Background:

  • Primary hyperparathyroidism evaluation involves various invasive and noninvasive tests.
  • While surgery success is high, localization studies are crucial for re-exploration and select primary cases.
  • Traditional noninvasive methods include sonography, CT, and MRI.

Purpose of the Study:

  • To review recent experience with sestamibi scans for parathyroid localization.
  • To assess the sensitivity and accuracy of sestamibi scans in primary hyperparathyroidism.

Main Methods:

  • Evaluated 24 patients with suspected primary hyperparathyroidism.
  • Utilized Technetium 99m sestamibi scans, with or without Iodine-123 subtraction, for parathyroid localization.
  • Correlated imaging findings with surgical exploration outcomes.

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Main Results:

  • Sestamibi scintigraphy localized parathyroid adenomas in 19 of 24 patients.
  • Surgical exploration in 20 patients showed an 89% positive predictive value correlating with imaging.
  • No false positives were reported; adenoma depth was not predictable from scans alone.

Conclusions:

  • Technetium 99m sestamibi is a useful and accurate radiopharmaceutical for preoperative localization in primary hyperparathyroidism.
  • Sestamibi imaging alone can assess parathyroid enlargement with delayed imaging.