What is Ultrasound?

Ultrasound also known as sonography is a technique using hign-frequency soundwave, 1 to 5 megahertz, which are bounced into the body and their reflections are captured by a machine which are transformed into readable images. This is done without any x-rays or use of dyes that need to be injected or swallowed. It forms images of living tissue, blood vessels and organs, which are captured on the computer as real-time "movies". The most well known function is Obstetric Sonography, scanning of living fetus within the mother's womb such as the neck, abdomen, pelvis and soft tissues including blood vessels in the arms and legs. Other uses are scaning for presence of tumours or cysts in the kidneys and liver. The gall bladder can be checked for gall stones. Blood vessels in the abdomen, extremities and neck can also be examined for presence of swelling or blockage.

Who will perform the examination?

The examination is usually performed by a specially trained health care professional called a sonographer. A series of images will be recorded by the sonographer. These images will then be interpreted by a doctor. In some cases, you may be examined by a doctor to confirm or resolve uncertain findings.

How do I prepare for my Ultrasound?

Certain ultrasound examination require special preparation, though you may eat and drink before the test you should NOT empty your bladder before coming for the test. With upper Abdominal Ultrasound you should not eat after midnight, you may have a small amount of water, tea or black coffee (no cream or sugar) the morning of the test. For Pelvic Ultrasound you may eat and drink before the test. All appropriate preparation will be explained at time of scheduling.

Next>> Part 2 - How is this procedure actually done?