Parathyroid technetium scintiscan (99mTc Sestamibi; Technetium-99 MIBI; methoxy-isobutyl-isonitrile
) was requisite and revealed left lower parathyroid adenoma (Figure 6).
Parathyroid scintigraphy was carried out after the intravenous injection of 450 MBq [sup.99m]Tc-MIBI sestamibi (methoxy-isobutyl-isonitrile
Operational definitions Myocardial Perfusion Scan (MPS) Myocardial perfusion SPECT scan was done using metastable Technetium 99 (Tc-99m) 2- methoxy-isobutyl-isonitrile
(MIBI) or Thallium 201 (Tl-201) thallous chloride.
Liver scan, thyroid scan and thallium heart scan, moreover, the pharmaceuticals used for these techniques were MIBI (Methoxy-Isobutyl-Isonitrile
), MDP (methylene diphosphonate), DTPA (diethylenetriaminepentaacetic acid), Phytate, Plane Tc-99m (technetium 99m) and Thallium-201, respectively.
All patients underwent two Tc-99m MIBI (Methoxy-Isobutyl-Isonitrile
) SPECT (Single Photon Emission Computed Tomography) studies (1 day protocol); one with exercise called as Stress MIBI study and one under resting conditions called Rest MIBI study.
However, the effect of the level of exercise on the accuracy of technetium-99m methoxy-isobutyl-isonitrile
([sup.99m]Tc-MIBI) imaging has not been widely studied and controversial results exist (3,8-21).