How is an MR arthrogram done?
The skin over the area where the injection will be given is cleaned with an antiseptic solution. The physician injects a local anesthetic to numb the area and a thin needle is inserted into the joint. Contrast material (fluid) is injected into the joint. In some cases, a small amount of medication or air may also be injected. During the injection of the contrast agent, patients may feel some slight pressure or discomfort as the joint is distended. The sensation is temporary. Some soreness may be present at the injection site for up to 24 hours.
