Contrast agents in medicine are chemical materials used to improve tissue and fluid contrast in the body during medical imaging. It is mainly used in improving the visibility of blood vessels and the gastrointestinal tract. Some types of contrast materials are used in a medical imaging examination and can be classified according to the imaging technique used. The first contract agent (Gadolinium) dates back to 1988 which is called gadopentetate dimeglumine (Magnevist) and was allocated for Magnetic Resonance Imaging (MRI)
Contrast Agents (Gadolinium)