Gadopentetate dimeglumine is primarily used as a contrast agent in magnetic resonance imaging (MRI) to enhance the visibility of internal structures. It is particularly effective in imaging the brain, spine, and associated tissues, helping to detect abnormalities such as tumors, inflammation, or blood vessel issues. This agent is also utilized in assessing the integrity of the blood-brain barrier and in diagnosing conditions like multiple sclerosis. In addition, it aids in visualizing the cardiovascular system, providing detailed images of the heart and blood vessels to identify blockages or other vascular diseases. Its ability to improve image clarity makes it a valuable tool in both diagnostic and therapeutic planning processes.