Contrast media injectors are medical devices that inject contrast agents into the body to improve the visibility of tissues in medical imaging procedures. They are used in CT, MRI, and interventional radiology suites. 
Contrast media injectors have evolved from manual injectors to automated systems that can: Precisely control the amount of contrast media used, Collect data automatically, and Provide personalized doses for each patient. 
Contrast media, also known as a "dye", enhances the differences between body tissues on images. This allows veins, arteries, and internal organs to show up more clearly on scan images. 
Different types of contrast media include:
Iodinated contrast media: Used in x-ray-based imaging modalities such as CT, fluoroscopy, angiography, and venography 
Gadolinium-based contrast agents (GBCAs): Used for the vast majority of contrast-enhanced MRI scans