How the body gets rid of MRI contrast dye

This trial tests new MRI (scanner) software and hardware and checks how safely people can complete the scan. You may qualify if you’re an adult who can do MRI safely and (if contrast is used) have adequate kidney function and no relevant allergy.

This trial collects urine after a CT scan with contrast dye to study how to reduce dye in hospital wastewater. You may help by using a special urine collection device.

This study looks at whether getting the MRI contrast dye multiple times over 5 years affects body movement and thinking skills. It compares people who had the dye repeatedly with people who have little or no exposure, using brain MRI scans and regular mental and movement testing.

This study tests different MRI imaging techniques to improve how scans look and measure targets. You may be able to join with or without a contrast dye, and you’ll need to travel to the NIH for follow-up visits.

This trial compares two different dyes (gadopiclenol and gadobutrol) used during MRI scans for people with unexpected kidney or adrenal findings. The goal is to see which dye works better for getting clear images of these areas.

This trial tests whether a newer contrast agent, gadopiclenol, works as well as the standard one for liver scans. It might be an option if you need an MRI to check for liver disease, tumors, or treatment response.