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Contrast media, also known as contrast agents, are substances used to enhance the visibility of organs and tissues during medical imaging procedures. These agents are typically administered intravenously, orally, or rectally, depending on the type of imaging procedure being performed. Contrast media can be used to improve the clarity of images obtained from X-rays, computed tomography (CT) scans, magnetic resonance imaging (MRI) scans, and ultrasound scans. Contrast media are typically composed of iodine, barium, or gadolinium. Iodine-based contrast media are used to improve the visibility of organs and tissues during X-ray imaging procedures. Barium-based contrast media are used to improve the visibility of organs and tissues during CT scans and MRI scans. Gadolinium-based contrast media are used to improve the visibility of organs and tissues during MRI scans. Some of the major companies in the contrast media market include Bayer AG, Bracco Imaging S.p.A., Guerbet Group, GE Healthcare, Lantheus Medical Imaging, Inc., Mallinckrodt 91¿´Æ¬, and Medtronic plc. Show Less Read more