This test provides a real-time window into your thyroid gland to evaluate its size and check for any lumps or nodules without any radiation or invasive methods.
Common Indications for Thyroid Ultrasound
Your doctor may request a Thyroid Ultrasound for:
- Investigating a lump felt in your neck during a physical exam.
- Evaluating an enlarged thyroid gland (a goiter).
- Following up on abnormal thyroid hormone blood tests.
- Tracking the growth or changes in a known thyroid nodule over time.
- Guiding a needle during a biopsy of a thyroid lump.
What exactly does a Thyroid Ultrasound show?
It shows the texture, size, and blood flow of the thyroid gland. It helps doctors tell the difference between solid tissue nodules and harmless, fluid-filled cysts, providing vital clues about whether a nodule needs further testing.
What happens during a Thyroid Ultrasound procedure?
- You will lie flat on your back on an exam table.
- A pillow or rolled towel may be placed under your shoulders to help tilt your head back and extend your neck.
- Warm gel is applied to the front of your neck.
- The sonographer will gently move the probe back and forth over your skin to capture images from multiple angles.
Do I need to prepare for a Thyroid Ultrasound?
No fasting or special preparation is needed. You can eat, drink, and take your regular medications normally. You should wear a loose-fitting, comfortable shirt and remove any necklaces or jewelry before the exam.
How long does a Thyroid Ultrasound take?
The procedure is very quick, usually taking only 15 to 20 minutes.
Are there different types of Thyroid Ultrasound scans?
The standard ultrasound evaluates the anatomy, but the Radiographer may also turn on the "Doppler" feature during the scan to check the blood supply reaching a specific nodule.
Will the scan be painful?
No, it is totally painless. You will only feel the slight pressure of the wand moving across your neck.
Conclusion
A Thyroid Ultrasound is a fast, easy, and painless way to get a detailed view of your thyroid. It provides your doctor with the necessary information to manage nodules and ensure your gland is healthy.