Gadolinium (for comparisons)

Gadolinium is a rare, metallic element used in medical imaging to improve the quality of MRI scans. When injected into the body, it acts as a contrast agent, highlighting areas like tissues or blood vessels that need detailed examination. Gadolinium contains properties that make it appear bright on MRI images, helping doctors identify abnormalities more easily. Although generally safe, some people with kidney issues may be at risk of a rare condition called nephrogenic systemic fibrosis. Its use is carefully controlled to balance diagnostic benefits with safety considerations.