Computed Tomography

Computed Tomography

What Is It?

computed tomography, teal down arrow

Computed Tomography–or CT– is a test that combines x-rays and computer-assisted technology to create cross-sectional images to aid in precise diagnosis and treatment. CT scans (also referred to as CAT scans) use an x-ray beam that circles a particular part of your body, providing images from different angles. The benefit to a CT scan versus an x-ray is a more detailed, 360-degree view of the area which means more precise imaging. CT scans are effective in diagnosing cancers, bleeding, and internal injuries, as well as diseases of the heart, lung, and other organs.

Examples of procedures include:

  • CT Abdomen
  • CT Pelvis
  • CT Brain
  • CT Head and Neck
  • CT Spine
  • Cardiac CT
computed tomography scan of brain

Before your exam

If your exam requires the use of contrast (a substance taken orally or injected to help visualize tissue and structures more clearly), you may be asked to fast for 6 hours prior to your appointment and refrain from any liquids 1 hour before the exam. As with x-rays, you may be asked to remove jewelry, dentures, or bulky clothing. We will provide gowns as needed.

Time required

for your exam

Most CT scans take less than 15 minutes to complete and require you to lie down as still as possible for that time period. The machine is circular and the table will move you through the ring to achieve the appropriate scans.

Contact us today to schedule your appointment.






Adventist Health Portland

10123 SE Market Street
Portland, Oregon 97216

Gresham Imaging Center

831 NW Council Drive
Gresham, Oregon 97030

Clackamas Medical Plaza

831 NW Council Drive
Gresham, Oregon 7030

Adventist Health Columbia Gorge

1700 E. 19th Street
The Dalles, Oregon 97058


Services & Procedures

Interventional Radiology

Make A Payment

Scheduling (Greater Portland): 503.251.6137

Scheduling (Columbia Gorge): 541.296.7700

Billing: 888.793.3525


Adventist Health Portland

Adventist Health Columbia Gorge

Oregon Health & Science University