technetium (redirected from Technetium tc-99m sulfur colloid)

technetium /tech·ne·ti·um/ (tek-ne´she-um) chemical element, at. no. 43, symbol Tc.

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technetium 99m  the most frequently used radioisotope in nuclear medicine, a gamma emitter (0.141 MeV) having a half-life of 6.01 hours.

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tech·ne·ti·um (tk-nsh-m, -shm)

n. Symbol Tc

A radioactive metal, the first synthetically produced element, used as a tracer and in diagnostic imaging. Atomic number 43.

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Technetium

A radioactive isotope frequently used in radionuclide scanning of the heart and other organs. It is produced during nuclear fission reactions.

Mentioned in: Multiple-Gated Acquisition (MUGA) Scan, Salivary Gland Scan, Technetium Heart Scan

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technetium (Tc)

Etymology: Gk, technectos, artificial

a radioactive, metallic element. Its atomic number is 43, and its atomic mass is 99. The first synthetic element, technetium also occurs in nature. Isotopes of technetium are used in radioisotope scanning procedures of internal organs such as the liver and spleen.

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technetium

a chemical element, atomic number 43, atomic weight 99, symbol Tc. See Table 6.

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technetium-99m

the most frequently used radioisotope in nuclear medicine, a gamma emitter having a half-life of 6.04 hours and a primary photon energy of 140 keV; symbol ^99mTc.

^99m

Tc sulfur coated scintiscan see scintiscan.