MRI contrast agents accumulate in the brain
(PHYSorg.com Nanotechnology)

The International Society for Magnetic Resonance in Medicine (ISMRM) has provided new guidance in the use of contrast agents during MRI scans. Emerging research suggests gadolinium-based contrast agents, injected in a patient`s veins to brighten tissues in MRI images, accumulate in the brain. More than 300 million doses of such drugs have been administered since their introduction in 1987.