Description
A Technetium Thyroid Scan is a nuclear medicine imaging test used to evaluate the structure and function of the thyroid gland. It uses a small amount of Technetium-99m, a safe radioactive tracer that is taken up by thyroid tissue, allowing doctors to visualize how the gland is working.
This scan helps identify abnormal thyroid activity, nodules, and conditions that affect hormone production.
What Is a Technetium Thyroid Scan?
In this test, Technetium-99m is injected into a vein and is absorbed by the thyroid gland in a similar way to iodine. A special gamma camera then captures images of the thyroid, showing areas of increased or reduced tracer uptake.
Why Is a Technetium Thyroid Scan Performed?
The scan is commonly recommended to:
- Evaluate hyperthyroidism and hypothyroidism
- Assess thyroid nodules
- Differentiate between hot and cold nodules
- Detect thyroid inflammation or abnormal growth
- Monitor known thyroid disorders
How Is the Scan Performed?
A small amount of Technetium-99m tracer is injected into a vein. After a short waiting period, you lie in front of a gamma camera, which takes images of the thyroid gland.
The test is painless and usually completed within 20 to 30 minutes.
Advantages of Technetium Thyroid Scan
- Provides functional and structural thyroid assessment
- Low radiation exposure
- Fast and non-invasive
- Helps guide accurate diagnosis and treatment
Book a Technetium Thyroid Scan
If you have symptoms such as neck swelling, unexplained weight changes, or abnormal thyroid blood tests, a Technetium Thyroid Scan can help determine the exact cause and guide proper treatment.
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