MRI, or magnetic resonance imaging, is one of the most efficient forms of medical imaging. The equipment uses strong magnets, radio waves, and computer processing to build fluid cross-sectional scans of the body. It works by taking images of every ‘slice’ of the body, then combining those images to create a full 3D representation. MRI equipment can be used with or without a contrasting agent, which would act to make certain tissues more visible in the scan. Gadolinium is a common contrasting agent, which is delivered through an IV. This equipment can be used to monitor the development of cancers, heart problems, and muscular issues.