Ultrasound imaging is used to study many of the body’s organs with high-frequency sound waves instead of radiation. A noninvasive imaging method, the ultrasound is both safe and painless, and it enables the physician to see images and movement inside the patient’s body.
What does an ultrasound do?
Ultrasound is a medical imaging technique that uses high-frequency sound waves similar to the sonar that dolphins and submarines use. When sound waves are recorded, they are immediately displayed on a monitor in real time. The echoes produced by these sound waves can be used to determine many things inside the human body, including organ size, blood flow and function, and the distance between objects. Although most individuals are familiar with ultrasound as the device that allows them to see the first picture of their unborn child, physicians also use ultrasound to examine many of the body's internal organs, including the heart, pancreas, liver, bladder and kidneys.