1) Roentgenogram 
An arthrogram is a series of images, often X-rays, of a joint after injection of a contrast medium. The injection is normally done under a local anesthetic.The radiologist performs the study using fluoroscopy or ultrasound to guide the placement of the needle into the joint and then injects an appropriate amount of contrast. ==Related technologies...
A diagnostic X-ray technique used to view bone structures following injection of a contrast medium into a joint.
X-ray technique for joints using air and/or dye injected into the affected area; useful in diagnosing meniscus tears of the knee and rotator cuff tears of the shoulder.
<investigation, radiology> A X-ray procedure involving the injection of radiopaque dye into a joint space to demonstrate the anatomy of the joint by X-ray. ... (27 Sep 1997) ... 
(ahr´thro-gram) a radiographic record after introduction of opaque contrast material into a joint. a nuclear medicine study used to detect the loosening of a prosthetic device.
A roentgenographic record of a joint after the introduction of contrast material.
x-ray of a joint.
Type: Term Pronunciation: ar′thrō-gram Definitions: 1. Imaging of a joint following the introduction of a contrast agent into the joint capsule to enhance visualization of the intraarticular structures.
an x-ray to view bone structures following an injection of a contrast fluid into a joint area. When the fluid leaks into an area that it does not belong, disease or injury may be considered, as a leak would provide evidence of a tear, opening or blockage
[n] - an X ray of a joint after the injection of a contrast medium
arthrogram Roentgenogram of a joint; usually implies the introduction of a contrast agent into the joint capsule.
noun an X ray of a joint after the injection of a contrast medium
an x-ray photograph produced by arthrography.