Computed Tomography (CT) Scan Of The Head And Face: How It Is Done

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How It Is Done

A CT scan is usually done by a radiology technologist. The pictures are usually read by a radiologist, who writes the report. Other doctors, such as a family medicine doctor, internist, or surgeon, may also review a CT scan.

You may need to take off any jewelry, glasses, and hearing aids. Wear comfortable, loose-fitting clothes.

During the test, you will lie on a table that is attached to the CT scanner, which is a large doughnut-shaped machine. Straps will hold your head still but your face will not be covered.

The table slides into the round opening of the scanner, and the scanner moves around your body. The table will move while the scanner takes pictures. You may hear a click or buzz as the table and scanner move. It is very important to lie still during the test.

During the test, you may be alone in the scan room. However, the technologist will watch you through a window. You will be able to talk to the technologist through a two-way intercom.

If dye (contrast material) is needed, it will be put in a vein (IV) over 30 seconds to 2 minutes. Then more pictures are taken.

This test usually takes about 30 minutes.

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Last updated:	July 19, 2007
Author:	Maria G. Essig, MS, ELS
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