Technetium Tc 99m Pyrophosphate

A radionuclide imaging agent used primarily in scintigraphy or tomography of the heart to evaluate the extent of the necrotic myocardial process. It has also been used in noninvasive tests for the distribution of organ involvement in different types of amyloidosis and for the evaluation of muscle necrosis in the extremities.

Year introduced: 1992

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Tree Number(s): D01.029.260.700.675.374.775.150.900, D01.695.625.675.650.775.150.900, D01.925.925

MeSH Unique ID: D016698

Registry Number: 5L76I61H2B

Entry Terms:

• Tc-PYP
• Tc PYP
• 99mTc-Pyrophosphate
• 99mTc Pyrophosphate
• Diphosphoric Acid, Technetium Salt
• Tc 99m-Pyrophosphate
• Tc 99m Pyrophosphate
• Technetium Tc 99m Pyrophosphate, Tc(3+) Salt (3:4)
• Technetium Tc 99m Pyrophosphate, Tc(4+) Salt (1:1)

Previous Indexing:

• Pyrophosphates (1966-1991)
• Technetium (1966-1991)

Pharmacologic Action:

• Radiopharmaceuticals

All MeSH Categories
Chemicals and Drugs Category
Inorganic Chemicals
Acids
Acids, Noncarboxylic
Phosphorus Acids
Phosphoric Acids
Phosphates
Polyphosphates
Diphosphates
Technetium Tc 99m Pyrophosphate

All MeSH Categories
Chemicals and Drugs Category
Inorganic Chemicals
Phosphorus Compounds
Phosphorus Acids
Phosphoric Acids
Phosphates
Polyphosphates
Diphosphates
Technetium Tc 99m Pyrophosphate

All MeSH Categories
Chemicals and Drugs Category
Inorganic Chemicals
Technetium Compounds
Technetium Tc 99m Pyrophosphate