ABSTRACT
This article describes the present status and future directions of magnetic resonance
arthrography (MRA) of the elbow and the wrist. The indications are evolving and not
yet clearly defined. MRA of the elbow is useful for evaluation of collateral ligaments,
the articular surfaces, and suspected loose bodies. MRA of the wrist currently is
typically reserved for difficult cases. A description and a comparison of direct and
indirect MRA techniques is provided. Direct MRA produces reliable joint enhancement
with capsular distension. Indirect MRA does not require a radiologist experienced
with arthrography but if it is improperly performed, results in suboptimal delineation
of intra-articular structures. A review of pertinent normal anatomy and common variants
is included as well as a discussion of pathology that is suitably demonstrated by
MRA technique. Typical examples of normal variants, abnormalities, and pitfalls are
illustrated to reduce interpretive error for radiologists using MRA of the elbow and
the wrist.
KEYWORDS
Arthrography - elbow - magnetic resonance imaging - wrist
