Contrast radiology–not a dying art (Proceedings)

Definition: A medical contrast medium (or contrast agent) is a substance used to enhance the contrast of structures or fluids within the body in medical imaging.

Agents used most frequently:

Studies to be discussed:
     • Digestive system
     • Urogenital system
     • Intra-cavitary
     • Water soluble iodinated contrast medium-
          o ionic and non-ionic
          o non-ionic tend to me less toxic
          o basic configuation of all of them-benzene ring that has iodine attached to it.

Commonly used iodinated contrast agents
High osmolar (ionic) Ionic contrast media have higher osmolarity and more side-effects

Commonly used iodinated contrast agents
Low osmolar (non-ionic)

Commonly used iodinated contrast agents
Non-ionic contrast media, have lower osmolarity and tend to have less side-effects, such as Omnipaque, Ultravist, Visipaque, etc.

Barium (gastro-intestinal)