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Alternative Names Return to topParanasal sinus radiography; x-ray - sinuses
Definition Return to top
A sinus x-ray is a picture of the air-filled cavities in the front of the skull.
How the Test is Performed Return to top
X-rays are a form of electromagnetic radiation -- like light, but of higher energy. They can pass through the body to form an image on film. Structures that are dense (such as bone) look white, air looks black, and other structures are shades of gray.
A sinus x-ray is taken in a hospital radiology department or your health care provider's office. You will be asked to sit in a chair so that any fluids in the sinus may be easily seen on the pictures. The technician may place your head in different positions as the pictures are taken.
How to Prepare for the Test Return to top
Tell your doctor if you are pregnant. Remove all jewelry.
How the Test Will Feel Return to top
Generally, there is little or no discomfort associated with x-rays.
Why the Test is Performed Return to top
This test is performed when symptoms of sinusitis or other sinus disorders are present.
What Abnormal Results Mean Return to top
The x-ray may detect tumors, obstructions, infections, and bleeding.
Additional conditions under which the test may be performed include:
Risks Return to top
There is low radiation exposure. X-rays are monitored and regulated to provide the minimum amount of radiation exposure needed to produce the image. Most experts feel that the risk of most x-rays is smaller than other risks we take every day. Pregnant women and children are more sensitive to the risks of x-rays.
Considerations Return to top
A CT scan of the sinuses is often preferred over a sinus x-ray, because it shows more detail.Update Date: 1/23/2008 Updated by: Alden J. Pearl, MD, Clinical Assistant Professor, Department of Otolaryngology, State University of New York Health Science Center at Brooklyn, Brooklyn, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.