Wiktionary
gadodiamide
n. A gadolinium-based contrast medium.
Wikipedia
Gadodiamide
Gadodiamide is a gadolinium-based MRI contrast agent, used in MR imaging procedures to assist in the visualization of blood vessels. It is commonly marketed under the trade name Omniscan.
A 2015 study found trace amounts of Gadolinium deposited in the brain tissue of patients that had received Gadodiamide.