What is an Arthrogram?

An arthrogram is a series of images of a joint after injection of contrast, usually using fluoroscopy, CT or MRI. Arthrograms can be diagnostic or therapeutic. Therapeutic arthrograms often distend the joint with cortisone and lidocaine, with common sites being the shoulder, hip and wrist. Diagnostic arthrograms can be helpful in determining the cause of pain using CT or MRI guidance.