Medical Ultrasound is widely used in medicine, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics.
It is possible to perform both diagnosis and therapeutic procedures, such as biopsies or to drain collections of fluid, which can be both diagnostic and therapeutic.
Sonography is effective for imaging soft tissues of the body. Superficial structures such as muscle, tendon, testis, breast, thyroid and parathyroid glands, and the neonatal brain are imaged at higher frequencies (7–18 MHz), which provide better linear and horizontal resolution. Deeper structures such as liver and kidney are imaged at lower frequencies (1–6 MHz) with lower axial and lateral resolution.