What is pertechnetate used for?
Pertechnetate scintigraphy is used for detecting asymmetry of the thyroids, for localizing of active thyroid nodules and “hot spots” (Scriviani et al., 2007).
What are the properties of Tc 99m?
The favorable physical characteristics (Fig. 1) of technetium 99m consist of a short, but not too short, physical half-life of six hours, the emission of a clean 140 kev gamma ray, and the absence of primary particle radiation. The energy deposition in tissue is thus extremely small.
What is Tc 99m sodium pertechnetate?
Sodium pertechnetate Tc99m injection is used IN CHILDREN as an agent for: brain imaging including cerebral radionuclide angiography; thyroid imaging; blood pool imaging including radionuclide angiography; and urinary bladder imaging (direct isotopic cystography) for the detection of vesico-ureteral reflux.
What is technetium pertechnetate?
Technetium 99m pertechnetate (99mTcO4−) is a useful radioactive label for thyroid scanning. It is of particular merit when emphasis is placed upon a low dose of thyroid radiation, optimal resolution, and scanning of thyroid glands in which function is decreased or partly blocked.
What is Tc-99m used for?
Technetium-99m is used to image the skeleton and heart muscle in particular, but also for brain, thyroid, lungs, liver, spleen, kidney, gall bladder, bone marrow, salivary and lachrymal glands, heart blood pool, infection and numerous specialized medical studies.
What are the properties of technetium?
technetium (Tc), chemical element, synthetic radioactive metal of Group 7 (VIIb) of the periodic table, the first element to be artificially produced….technetium.
|melting point||2,172° C (3,942° F)|
|boiling point||4,877° C (8,811° F)|
|specific gravity||11.5 (20° C)|
|oxidation states||+4, +6, +7|
What is the characteristics of technetium?
Characteristics: Technetium is a rare, silver-gray metal that tarnishes slowly in moist air. In powder form, it burns in oxygen to form the heptoxide (Tc2O7). Technetium dissolves in nitric acid and concentrated sulfuric acid, but is not soluble in hydrochloric acid of any strength.
How is technetium 99m detected?
Technetium-99m (Tc-99m) can be readily detected in the body by medical equipment because it emits 140.5 keV gamma rays (these are about the same wavelength as emitted by conventional X-ray diagnostic equipment), and its half-life for gamma emission is six hours (meaning 94% of it decays to 99Tc in 24 hours).
What is the half-life of Tc99m?
Molybdenum-99, with a half-life of 65.94 hours, decays into technetium -99 through beta decay.