The thyroid gland is a vital organ that regulates metabolism, energy production, and general health. When thyroid diseases do occur, imaging by medical imaging is essential for proper diagnosis and treatment planning. A thyroid scan is one of the most useful methods, allowing evaluation of thyroid gland function and detection of abnormalities like nodules, goitres, and thyroid cancer.
Here in this article, we will be talking about various imaging methods for thyroid diseases, their advantages, and how they are assisting in thyroid diagnosis. We will talk about the price of thyroid tests, newer imaging modalities such as PET scans and CT scan in Bangalore, and the use of radioactive iodine therapy in thyroid treatment.
Understanding the Thyroid Scan
A thyroid scan is a radiological test performed to evaluate the size, shape, and function of the thyroid gland.
Thyroid scan diagnosis aids in detecting the following:
- Hyperthyroidism (overactive thyroid)
- Hypothyroidism (underactive thyroid)
- Thyroid nodules and tumours
- Thyroid cancer
The diagnosis is done by giving a patient a tiny dose of radioactive iodine or technetium, which is absorbed by the thyroid. This is then followed by a special gamma camera that snaps photographs under which doctors study the gland and any pathology within it.
Common Imaging Modalities for Thyroid Disease
1. Thyroid Ultrasound
- Purpose: To identify thyroid nodules, cysts, and tumours.
- Procedure: A non-surgical scan employing high-frequency sound waves.
- Advantage: No radiation exposure; gives real-time images.
2. Thyroid Scan with Radioactive Iodine (RAI Scan)
- Purpose: Tests thyroid gland function and identifies abnormalities.
- Procedure: Swallows a small amount of radioactive iodine or receives an injection, followed by imaging.
- Benefits: Very good in diagnosing goitres, thyroid cancer, and hyperthyroidism.
3. Imaging-guided fine-needle Aspiration (FNA) Biopsy
- Purpose: Cancer screening of a thyroid nodule.
- Procedure: Uses a thin needle under imaging, and samples the tissue.
- Benefit: Definite detection of thyroid cancer.
4. PET Scan for Thyroid Cancer Detection
- Purpose: For cancer detection of metastatic or recurrent thyroid.
- Procedure: Involves the use of a radioactive glucose tracer that marks cancer cells in the body.
- Benefits: Offers high metabolic activity of cancer cells, one of the best PET scan options in Bangalore.
5. CT Scan for Large Thyroid Imaging
- Purpose: Detects large goitres, tumours, and thyroid abnormalities extending to the chest.
- Procedure: Contrast dye X-ray for an in-depth examination.
- Advantages: High-quality images assist with surgery planning and intricate diagnoses.
Role of Radioactive Iodine Therapy in Thyroid Treatment
Radioactive iodine therapy (RAI) is a treatment for hyperthyroidism and thyroid cancer. It selectively destroys excess thyroid cells with no harmful effects on other organs.
How Is It Done?
- The patient takes a minute amount of radioactive iodine by mouth.
- The iodine is taken up by thyroid cells.
- The radiation slowly kills off abnormal thyroid tissue, which slows down the overproduction of hormones.
Who Needs Radioactive Iodine Therapy?
- Individuals with Graves’ disease or hyperthyroidism
- Individuals with thyroid cancer after surgery
- Individuals with goitres that need to be made smaller
RAI therapy is safe and effective, but patients need to take precautions following treatment to prevent others from being exposed to radiation
Conclusion
When it’s about thyroid imaging and cancer diagnosis, the selection of a good diagnostic centre is important. Kiran PET-CT is a well-known diagnostic centre that provides PET and CT scanning with cutting-edge imaging technology for a clear diagnosis. Its skilled radiologists provide precise diagnosis of thyroid abnormalities, cancer, and metabolism, so patients can bank on them for their imaging requirements. If you have thyroid issues or require a quality thyroid scan in Bangalore, try to consult an expert and avail the best imaging procedure for your condition.
