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An injectable drug containing an isotope of the radioactive element technetium, used in nuclear medicine imaging primarily to visualize the heart muscle, parathyroid glands, and breast tissue.

[sesta-, perhaps alteration (influenced by Latin sex, six) of hexakis-, prefix indicating six in chemical names (from the six ligands bound to its central technetium ion ) + m(ethoxy)i(so)b(utyl)i(sonitrile).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
Pre operative localization is being carried out (in UK) by ultrasonography (USG) (73%), 99 Technetium (TC) Sestamibi parathyroid scan (82%), Computed Tomography (CT) scan or Magnetic Resonance Imaging (MRI) (5%).
A technetium sestamibi scan of the patient's myocardium revealed no perfusion defects (Fig.
The MBI uses a chemical compound called sestamibi, and a special camera that detects tissue activity.
The most common methods used in the imaging of parathyroid adenomas are ultrasonography (USG) and Tc-99m sestamibi scintigraphy (MIBI).
Technetium-99m (Tc-99m) sestamibi scan revealed an enlarged right superior parathyroid gland.
sicanlarda yaptiklari akut iskemi-reperfuzyon calismasinda I-12515-(p-iodophenyl)-3-R,S-methyl penta decanoic acid (BMIPP), Tl201, Tc-99m sestamibi kullanarak 3 ajan ile otoradyografik degerlendirme yapmistir (31).
A whole-body Tc99 m sestamibi parathyroid scan showed an increased tracer concentration in the anterior mediastinum, which suggested the presence of active parathyroid tissue, while the same activity was not observed in the neck.
Parathyroid scintigraphy was carried out after the intravenous injection of 450 MBq [sup.99m]Tc-MIBI sestamibi (methoxy-isobutyl-isonitrile).
At the 6th month of follow-up, sestamibi parathyroid scan showed no abnormality and no residual mass in the right thyroid lobe.