Ultrasound produces sound waves that are beamed into the body causing return echoes that are recorded to "visualize" structures beneath the skin. The ability to measure different echoes reflected from a variety of tissues allows a shadow picture to be constructed. The technology is especially accurate at seeing the interface between solid and fluid filled spaces. Ultrasound Techs actually conduct the test, but the Radiologists read the tests. Learn more about Samaritan's Imaging Services today.