The thyroid gland is located in the front of the neck, just below the Adam's Apple and is the shape of a butterfly, with two lobes; one on either side of the neck connected by a narrow isthmus or band of thyroid tissue. The thyroid is one of the major endocrine glands in the body, producing hormones such as Thyroxine which is released into the blood stream.
Ultrasound is a painless and effective means of assessing the thyroid gland, using high frequency sound waves to image the thyroid tissue and Doppler ultrasound to assess the blood flow within the gland. During a thyroid ultrasound, the size of the gland is measured, the thyroid tissue and the blood flow assessed and any focal area, such as nodules and cysts detailed.
You will not be required to change for thyroid ultrasound examination. A v-neck or front opening top or shirt is advisable, as this will allow ease of access to the neck. You will lie on your back during the study, looking directly up at the ceiling. Try not to swallow of cough during the scan, as motion can affect the quality of the images collected.
A clear gel will be applied to your skin during the examination, this is to enable the ultrasound to penetrate the skin layer. The sonographer will gently move the ultrasound probe over the anterior surface of the neck during the examination, recording images of the thyroid gland.