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Technetium 99m Tc albumin aggregated (99m Tc-MAA) is an injectable radiopharmaceutical used in nuclear medicine. It consists of a sterile aqueous suspension of Technetium-99m (99m Tc) labeled to human albumin aggregate particles. It is commonly used for lung perfusion scanning.
The parathyroid gland takes up 99m Tc MIBI following an intravenous injection, and the patient's neck is imaged with a gamma camera to show the location of all glands. A second image is obtained after a washout time (approximately 2 hours), and mitochondria in the oxyphil cells of the abnormal glands retaining the 99m Tc are seen with the gamma ...
A MUGA scan (multigated acquisition) involves an acquisition triggered (gated) at different points of the cardiac cycle. MUGA scanning is also called equilibrium radionuclide angiocardiography , radionuclide ventriculography ( RNVG ), or gated blood pool imaging , as well as SYMA scanning (synchronized multigated acquisition scanning).
A DPD scan is a type of nuclear medicine imaging test which uses radioactive technetium-99m (99m Tc) and 3,3-diphosphono-1,2-propanodicarboxylic acid (DPD) to diagnose cardiac amyloidosis. The radiopharmaceutical is taken up only in patients with ATTR amyloidosis , making it a useful tool to differentiate from AL amyloidosis .
By using a gamma camera in nuclear medicine, the radiologist is able to determine if one of the four parathyroid glands is hyperfunctioning, if that is the cause of the hyperparathyroidism. Theoretically, the hyperfunctioning parathyroid gland will take up more of the Tc99m-sestamibi, and will show up 'brighter' than the other normal ...
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Single-photon emission computed tomography (SPECT, or less commonly, SPET) is a nuclear medicine tomographic imaging technique using gamma rays. [1] It is very similar to conventional nuclear medicine planar imaging using a gamma camera (that is, scintigraphy ), [ 2 ] but is able to provide true 3D information.
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