Ultrasound or sonography involves sending sound waves into the body. These sound waves reflect off the internal organs and are recorded by special instruments to create images of anatomic parts. No ionizing radiation (X-ray) is involved in ultrasound imaging.
Ultrasound images are captured in real-time so they can show movement of internal tissues and organs as well as the flow of blood in arteries and veins allowing physicians to assess normal and abnormal body function.
Ultrasound is also a non-invasive way of examining many of the body’s internal organs, including the liver, gallbladder, spleen, pancreas, kidneys, urinary bladder, uterus and ovaries.
One of the most common types of ultrasound is an obstetric ultrasound, which is the specialized use of sound waves to visualize and assess the development and growth of the embryo or fetus. The two dimensional (2D) images may be complemented by three dimensional (3D) ultrasound images to help evaluate many structures such as the uterus or fetal heart.