Ultrasound
Ultrasound involves the use of high-frequency sound waves to create images of organs and systems within the body.
Sonogram
An
ultrasound machine creates images that allow various organs in the body
to be examined. The machine sends out high-frequency sound waves, which
reflect off body structures. A computer receives these reflected waves
and uses them to create a picture. Unlike with an x-ray, there is no
ionizing radiation exposure with this test.
The test is done in
the ultrasound or radiology department. You will be lying down for the
procedure. A clear, water-based conducting gel is applied to the skin
over the area being examined to help with the transmission of the sound
waves. A handheld probe called a transducer is then moved over the area
being examined. You may be asked to change position so that other areas
can be examined.
For specific information about ultrasound examinations, please refer to the following topics:
Preparation for the procedure will depend on the body region being examined.
There is generally little discomfort with ultrasound procedures. The conducting gel may feel slightly cold and wet.
The reason for the examination will depend on your symptoms.
Results are considered normal if the organs and structures in the region being examined are normal in appearance.
The
significance of abnormal results will depend on the body region being
examined and the nature of the problem. Consult your health care
provider with any questions and concerns.
There are no documented risks. No ionizing radiation exposure is involved.
Most
ultrasound examinations are performed in the manner described. However,
certain circumstances require that the ultrasound probe be inserted
into the body, rather than simply passing it over the skin. Consult
your health care provider to determine the specifics of your test.
Review Date: 10/23/2006
Reviewed By: Stuart Bentley-Hibbert, M.D., Ph.D., Department of Radiology, Weill Cornell Medical Center, New York, NY. Review provided by VeriMed Healthcare Network.
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