Ultrasound is a non-invasive technology that allows us to actually see inside the body. However, unlike x-rays, there is no radiation exposure to your pet. As the name implies, ultrasound uses very high frequency sound waves to form a picture of the internal organs similar to sonar. Compared to x-rays, which basically gives an outline of the internal organs and bones, ultrasound allows us to actually see the internal architecture and structure of an internal organ. This is a major advantage over x-rays because it allows us to see abnormalities within the organs with much greater precision and accuracy. We are able to see tumors and other small localized abnormalities within the organs that are not visible on x-ray films. Another very important advantage of ultrasound over x-rays is that it allows us to measure the size of structures within the body and to visualize blood flow in arteries, veins, and organs within the body. Ultrasound can be used to diagnose diseases of the liver, kidney, heart and many other organs, it can also be used for pregnancy diagnosis.