This non-invasive, state-of-the-art technology uses sound waves to painlessly examine specific internal organs, primarily the heart and abdominal organs. A device called a transducer emits very high frequency sound waves into the animal’s body and measures when the waves bounce back. A computer interprets the pattern of sound reflection and creates either a still picture or a moving image on a monitor. Advantages to this procedure are that it is painless and requires no chemicals, radiation, or entry into the body. It is safe to use on delicate tissue like the retina, the spinal cord, and developing fetuses, making it especially useful technology for safe pregnancy exams.