Thyroid ultrasound echogenicity is an ultrasound examination of the thyroid gland in which the instrument emits ultrasound waves that are reflected when they encounter different tissues, creating different echogenic changes due to inconsistent amounts of reflection from different substances. It can be used to screen for and confirm thyroid disease.
If abnormal tissue is present in the thyroid gland, ultrasound changes in the thyroid gland will occur. The imaging principle is that the instrument emits ultrasound, which is reflected back when it touches an object and is received by the instrument for imaging analysis. The ultrasound description of the tissue is described by the echogenicity.
It is mainly used to screen and diagnose thyroiditis, thyroid nodules, thyroid cancer, diffuse goiter, etc.
According to ultrasound imaging principles, pathologic changes such as local tissue proliferation, angiogenesis, calcification, and nodule formation occur within the thyroid parenchyma as a result of disease. This results in local tissue with different densities than normal thyroid tissue, which manifests as different echogenicity from normal tissue. For the specific type of tissue or disease, further refinement of the puncture biopsy is recommended.