MR arthrography is a specialized joint MRI in which contrast is injected into the joint before scanning. Filling the joint space separates the structures inside it, making cartilage, labral, and ligament tears far easier to see than on a standard MRI.
Also called: MR arthrogram · MRI arthrography · Joint injection MRI
Why add an injection to a joint MRI?
Distending the joint with contrast pushes the internal structures apart, so small tears that would otherwise sit flat against surrounding tissue become visible. Many physicians believe it is easier to see ligament tears with an MR arthrogram than with a traditional non-contrast MRI.
Which joints are examined?
MR arthrography is most often used for the shoulder, hip, wrist, knee, and ankle — typically in patients with persistent, unexplained joint pain, or after prior surgery.
What happens during the procedure?
A radiologist numbs the skin with local anesthetic, then places contrast into the joint space using image guidance. Patients typically feel a slight pinprick and a brief burning as the anesthetic goes in, followed by numbness and a sensation of fullness as the joint fills. The MRI scan follows immediately.
A radiologist interprets the images and sends the findings to your referring physician, who will discuss next steps with you.
How do I prepare?
Plan for a little extra time for the guided injection before your MRI. Arrange a driver if your joint feels stiff afterward.
Where can I get this exam?
MR Arthrography is available at five of our centers — Palm Harbor MRI, Highland MRI, Brandon MRI, Sarasota MRI and Venice MRI. One call reaches every location — we will schedule you at whichever has the soonest opening, usually the same week.
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Medically reviewed by the board-certified radiologists of MRI Associates · Updated 2026-08-25