Final answer:
An arthrogram is recommended for the early detection of rheumatoid arthritis, as it can visualize soft tissues within joints and detect degenerative changes before severe bone damage occurs.
Step-by-step explanation:
For early detection of rheumatoid arthritis (RA), a specialized imaging technique called an arthrogram is recommended. This diagnostic tool is particularly useful because it uses a contrast agent, which is opaque to X-rays, to visualize the soft tissue structures within joints - such as cartilage, tendons, and ligaments - unlike a regular X-ray which shows only the bones. As RA typically affects the synovial joints, particularly in the hands, feet, and cervical spine, an arthrogram can detect early degenerative changes within joint cartilage before bone damage becomes apparent. This is essential for rheumatologists to provide an accurate diagnosis and administer suitable treatments before the condition progresses significantly.