CT Arthrogram

Download/print the Arthrogram patient information sheet

What is a CT Arthrogram?

A CT arthrogram is a two-part procedure performed to aid in the diagnosis of subtle abnormalities in the joints of the extremities, including the shoulder, elbow, wrist, hip, knee and ankle. 

How should I prepare for my exam?
  • If you have an active infection and are taking antibiotics, the medication course must be complete prior to the procedure, to ensure that no infection remains.

  • Wear comfortable clothes without metal fasteners, including zippers, buttons and snaps.

  • Arrive 15 minutes early to complete registration.

  • Bring with you:
    – Your appointment form
    – Your insurance card and a valid photo ID

  • Please let us know about any of the following:
    – Pregnancy, known or possible
    – Allergies to medications, iodine or x-ray contrast
How long will my exam take?

A CT arthrogram typically takes about an hour: 30 minutes for the injection and 30-45 minutes for the CT scan.

What happens during my exam?

During the first part of a CT arthrogram, contrast is injected into the joint space under x-ray guidance. The contrast material serves to illuminate the joint space during imaging. 

The second part of a CT arthrogram is to capture images of the joint.

What happens after my exam?

Your images will be interpreted by one of our board-certified radiologists. The findings will be sent to your healthcare provider who will then contact you to discuss the results.

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