TcT

TcT, also known as Tc-99m, is a radioactive isotope of technetium, a chemical element with the symbol Tc and atomic number 43. It is widely used in nuclear medicine for diagnostic imaging due to its favorable nuclear properties. Tc-99m is produced through the fission of uranium-235 in nuclear reactors and is then separated and purified for medical use. The isotope has a half-life of approximately 6 hours, which allows for its use in short-term diagnostic procedures. Tc-99m is typically bound to various chelating agents to form radiopharmaceuticals, such as pertechnetate (TcO4-) or stannous pyrophosphate (SnPP), which are used in imaging techniques like single-photon emission computed tomography (SPECT) and planar imaging. These radiopharmaceuticals are used to visualize various organs and tissues, including the heart, lungs, bones, and brain, aiding in the diagnosis and monitoring of diseases. The use of Tc-99m in medical imaging has significantly contributed to the advancement of non-invasive diagnostic techniques, improving patient outcomes and reducing the need for invasive procedures.