Also known as sonography, ultrasound imaging uses a small transducer (probe) to both transmit sound waves into the body and record the waves that echo back. Sound waves travel into the area being examined until they hit a boundary between tissues, such as between fluid and soft tissue, or soft tissue and bone.
There is no radiation associated with ultrasound imaging. This noninvasive, painless procedure is ideal for monitoring the function of internal organs, and is commonly used to evaluate:
The ultrasound examination usually takes 15 to 45 minutes to complete. The procedure is noninvasive, and is generally painless unless the area to be scanned is tender. You may return to your normal activities after the exam.
Your technologist will guide you through the ultrasound exam, which generally involves: