Arthrogram (MR or CT Arthrogram)
An arthrogram is a study used to evaluate a specified joint space (knee, hip, shoulder or wrist).
During an arthrogram, contrast is injected into the joint space. The exact site of injection will be determined by using X-rays. The area will be cleansed with a sterile soap and a sterile field will be created to prevent infection.
A local numbing agent will be introduced to obtain access into the joint space. Once access is obtained, a small amount of contrast will be injected. After the injection, the needle will be removed and a bandage placed. You will then be taken to MRI or CT at this time for additional images of the joint.
You may eat or drink without restriction prior to this exam.
Please bring a list of your current medications and allergy list. If you are taking a blood thinner, please check with your provider to determine how long it should be held prior to this exam.
Contrast agents (X-ray dye) are widely used in the radiology field today; however, if you have a history of contrast allergy, please alert the doctor ordering your exam. Pre-medication may be needed. A full medical/allergy history will be obtained prior to beginning the exam.
An arthrogram takes approximately one hour. Please note that if an MR arthrogram is ordered, this will add to the exam time.
You may resume a normal diet and your medications as needed after an arthrogram. You will not be placed on restrictions; however, you may experience soreness at the injection site.