What Is MRI Contrast?
MRI contrast agents (most commonly gadolinium-based) are injected intravenously before or during the scan. The contrast agent affects the magnetic properties of nearby tissues, causing certain structures to appear brighter on the MRI images.
Contrast MRI provides additional diagnostic information that standard non-contrast MRI cannot.
When Is Contrast MRI Used?
Contrast MRI is commonly used to evaluate brain tumors, infections, inflammation, and active MS plaques. It is also used to assess blood vessel abnormalities and certain types of spinal pathology.
For most car accident injury MRI scans — including brain TBI screening and spinal injury evaluation — non-contrast MRI is sufficient and is typically the first imaging ordered.
Safety and Preparation for Contrast MRI
Gadolinium contrast is generally well tolerated, but patients with impaired kidney function may need special precautions. Inform our staff about any kidney problems or history of contrast reactions.
You may be asked to fast for a few hours before a contrast MRI. Our staff will provide specific preparation instructions when you schedule.