Ultrasound imaging, also called sonography, involves exposing part of the body to high-frequency sound waves to produce pictures of the inside of the body. Ultrasound exams do not use ionizing radiation (as used in x-rays). Because ultrasound images are captured in real-time, they can show the structure and movement of the body's internal organs, as well as blood flowing through blood vessels.
Conventional ultrasound displays the images in thin, flat sections of the body. Ultrasound examinations can help to diagnose and treat a variety of medical conditions and to assess organ damage following illness. Ultrasound is used to help physicians evaluate symptoms such as pain, swelling, and infection and is a useful way of examining many of the body's internal organs.
For information on how to prepare for your ultrasound, please click here.
Source: RadiologyInfo.org (6/2011)