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Scintigraphy (from Latin scintilla, "spark"), also known as a gamma scan, is a diagnostic test in nuclear medicine, where radioisotopes attached to drugs that travel to a specific organ or tissue (radiopharmaceuticals) are taken internally and the emitted gamma radiation is captured by gamma cameras, which are external detectors that form two-dimensional images [1] in a process similar to the ...
2.30 Thallium-201. 2.31 Xenon-133. 2.32 Yttrium-90. 3 See also. 4 References. ... Red cell volume heart scan; sites of sequestration; gastrointestinal blood loss IV ...
Thallium (81 Tl) has 41 isotopes with atomic masses that range from 176 to 216. 203 Tl and 205 Tl are the only stable isotopes and 204 Tl is the most stable radioisotope with a half-life of 3.78 years. 207 Tl, with a half-life of 4.77 minutes, has the longest half-life of naturally occurring Tl radioisotopes.
The power of prognosis from a myocardial perfusion scan is excellent and has been well tested, and this is "perhaps the area of nuclear cardiology where the evidence is most strong". [ 13 ] [ 16 ] Many radionuclides used for myocardial perfusion imaging, including rubidium-82 , technetium-99m and thallium-201 have similar typical effective ...
The radioisotope thallium-201 (as the soluble chloride TlCl) is used in small amounts as an agent in a nuclear medicine scan, during one type of nuclear cardiac stress test. Soluble thallium salts (many of which are nearly tasteless) are highly toxic and they were historically used in rat poisons and insecticides .
The thallium was slipped into bottles of Coca-Cola at the Carr and Trepal homes. [27] Thallium was the poison of choice for Saddam Hussein to use on dissidents, which even allowed for them to emigrate before dying. [28] In 1995, Zhu Ling was the victim of an unsolved attempted thallium poisoning in Beijing, China.
Thallium(I) iodide has the CsCl crystal structure. The monohalides, also known as thallous halides, all contain thallium with oxidation state +1. Parallels can be drawn between the thallium(I) halides and their corresponding silver salts; for example, thallium(I) chloride and bromide are light-sensitive, and thallium(I) fluoride is more soluble in water than the chloride and bromide.
Thallium(III) acetate is the acetate salt of thallium, with the chemical formula Tl(CH 3 COO) 3. As a selective culture medium in microbiology, [1] thallium acetate is toxic, [2] but it can also be used as a hair loss agent. Koremlu, a depilatory that contained the rat poison Thallium acetate was widely marketed during th 1930s.