Services : Arthrograms

How is an Arthrogram different from a regular MRI?

This examination will enable your doctor to better visualize a joint in your body, more than a routine MRI. A MRI arthrogram is a radiographic procedure in which a radiologist injects contrast material into the joint before the MRI exam is completed.

What should I expect?

First the technologist will explain the procedure and you will need to sign a consent form. Next, the radiologist will cleanse the area over the joint and the skin will be numbed with a local anesthetic (this may burn for a moment). The radiologist will use X-ray fluoroscopy to place a needle into the joint and to observe the contrast material being injected into the joint. You will then be taken over to the MRI suite for the completion of the exam. The technologist will be observing you and giving you instructions during the exam.

How should I prepare for the exam?

You must not take any blood thinning medications for 48 hours before and 24 hours after the arthrogram. These include prescription drugs, aspirin products, and vitamin E. This exam does not require any fasting, but it is preferable that you have clear liquids only for 2 to 3 hours before the exam. The entire examination should take approximately 60-90 minutes.

You may not be able to have an MRI if you have one of the following:

• Cardiac pacemaker
• Cerebral aneurysm clip
• Metallic implants
• Cochlear implants
• Metal fragments in your eye or other parts of your body
• Prosthetic implants
• Women who are pregnant

Please be sure your physician and the MRI staff are aware of any of these conditions. If you have any questions, be sure to ask.

What should I expect after the exam?

You may have some mild discomfort or swelling of the joint following the examination. It is best to rest the joint for 12 hours after the procedure. During this time you may apply ice if swelling occurs and take a mild pain reliever such as Tylenol. If symptoms continue or worsen, immediately call your doctor.

How do I get my exam results?

Your physician will receive a written report from the radiologist within 24 hours. Most physicians prefer to discuss the results directly with you, so please follow his/her specific instructions to obtain the results.