Abdominal Ultrasound: How It Is Done

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How It Is Done

This test is done by a doctor who specializes in performing and interpreting imaging tests (radiologist) or by an ultrasound technologist (sonographer) who is supervised by a radiologist. It is done in an ultrasound room in a hospital or doctor's office.

You will need to remove any jewelry that might interfere with the ultrasound scan. You will need to take off all or most of your clothes, depending on which area is examined (you may be allowed to keep on your underwear if it does not interfere with the test). You will be given a cloth or paper covering to use during the test.

You will lie on your back (or on your side) on a padded examination table. Warmed gel will be spread on your abdomen to improve the quality of the sound waves. A small handheld unit, called a transducer, is pressed against your abdomen and moved back and forth over it. A picture of the organs and blood vessels can be seen on a video monitor.

You may be asked to change positions so additional scans can be made. For a kidney ultrasound, you may be asked to lie on your stomach.

You need to lie very still while the ultrasound scan is being done. You may be asked to take a breath and hold it for several seconds during the scanning. This lets the sonographer see organs and structures, such as the bile ducts, more clearly because they are not moving. Holding your breath also temporarily pushes the liver and spleen lower into the belly so they are not hidden by the lower ribs which makes it harder for the sonographer to see them clearly.

Abdominal ultrasound usually takes 30 to 60 minutes. You may be asked to wait until the radiologist has reviewed the information. The radiologist may want to do additional ultrasound views of some areas of your abdomen.

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Last updated:	January 17, 2007
Author:	Jan Nissl, RN, BS
Reviewed By:	Paul D. Traughber, MD - Radiology, Kenneth B. Sutherland, CD, BSc, MD, FRCPC - Diagnostic Radiology
Editors:	Susan Van Houten, RN, BSN, MBA, Tracy Landauer

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