Sestamibi scan
Sestamibi Scan
A Sestamibi Scan (pronounced ses-ta-mi-bi scan) is a type of nuclear medicine imaging test that uses a small amount of radioactive material to diagnose or predict the severity of certain diseases.
Etymology
The term "Sestamibi" is an abbreviation for Sestamethoxyisobutylisonitrile. It is a type of Technetium (99mTc) compound used in nuclear medicine for the imaging of certain tissues.
Procedure
The Sestamibi Scan involves the injection of a small amount of radioactive tracer, usually Technetium-99m Sestamibi, into the patient's bloodstream. The tracer travels through the blood and accumulates in certain tissues, which can then be imaged using a special camera that detects radioactivity.
The scan is most commonly used to image the parathyroid glands and the heart. In parathyroid imaging, the scan is used to identify hyperparathyroidism, a condition where the parathyroid glands produce too much hormone. In cardiac imaging, the scan is used to identify areas of the heart that may not be receiving enough blood.
Related Terms
- Nuclear Medicine: A medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease.
- Technetium (99mTc): A metastable nuclear isomer used in various medical imaging tests.
- Parathyroid Glands: Small endocrine glands in the neck that produce parathyroid hormone.
- Hyperparathyroidism: Overactivity of the parathyroid glands resulting in excess production of parathyroid hormone.
External links
- Medical encyclopedia article on Sestamibi scan
- Wikipedia's article - Sestamibi scan
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