Fluoroscopy, X-ray, magnetic resonance imaging and computer tomography are some of the conventional arthrography imagery techniques. Arthrography is a medical imaging system used to evaluate joint conditions, which involves injecting a contrast medium into the bloodstream or directly into the joint, says RadiologyInfo.org.
There are four major types of arthrogram imagery. Fluoroscopy is a unique form of X-ray that entails injecting iodine-containing dye into a joint, which makes it possible to see joints, bones and internal organs in motion. The injected dye fills the joint, allowing the radiologist to assess the anatomy and function of it. The X-ray, which is the oldest form of medical imaging, is a noninvasive test that exposes the body to small doses of ionizing radiation while mapping out body organs, states RadiologyInfo.org.
MRI involves injecting a gadolinium-containing contrast medium, which affects the local magnetic field inside the joint to provide a clear outline of the joint structure. It uses radio frequency pulses, powerful magnetic fields, and a computer to map out a detailed picture of the internal body structure, bones, and soft tissues, according to RadiologyInfo.org.
A CT arthrography makes cross-sectional images of the body, using X-rays, which are then processed by a computer. It uses the conventional dyes, which may be supplemented with air, to produce a double-contrast arthrogram, notes RadiologyInfo.org.