Thyroid ultrasound is a non-invasive diagnostic imaging test used to evaluate the thyroid gland. The thyroid gland is a butterfly-shaped gland located in the neck that produces hormones that regulate metabolism, growth, and development. The thyroid ultrasound test uses high-frequency sound waves to produce detailed images of the thyroid gland, which can help diagnose and monitor thyroid disorders.
Thyroid Ultrasound Test
A thyroid ultrasound test is a painless and non-invasive diagnostic imaging test that uses high-frequency sound waves to produce detailed images of the thyroid gland. It is usually performed in a radiology department or by a specialized medical professional. During the test, the patient lies on their back with their neck extended, and a gel is applied to the skin over the thyroid gland. A transducer, which emits sound waves, is then placed over the gel and moved around the neck to produce images of the thyroid gland.
The test takes about 15-30 minutes to complete, and there are no known risks or side effects associated with it. Patients do not need to prepare for the test, and there are no restrictions on eating or drinking before the test.
What Can a Thyroid Ultrasound Detect?
A thyroid ultrasound test can detect a wide range of thyroid abnormalities, including:
- Nodules: small lumps or growths on the thyroid gland
- Cysts: fluid-filled sacs on the thyroid gland
- Enlargement: an enlarged thyroid gland, also known as goiter
- Inflammation: inflammation of the thyroid gland, also known as thyroiditis
- Cancer: thyroid cancer, which is rare but can be detected with ultrasound
Thyroid Ultrasound Normal Range:
The size of the thyroid gland can vary from person to person, and it can also vary depending on age, sex, and body size. According to the American Thyroid Association, the normal range of thyroid volume is 4-25 ml for women and 4-30 ml for men. The normal range of thyroid size is less than 18 mm in width, less than 25 mm in height, and less than 12 mm in thickness.
Is a thyroid ultrasound test painful?
No, a thyroid ultrasound test is not painful. It is a non-invasive diagnostic imaging test that uses high-frequency sound waves to produce detailed images of the thyroid gland.
How long does a thyroid ultrasound test take?
A thyroid ultrasound test takes about 15-30 minutes.