Contrast materials can help highlight areas of interest in MRI scans. Contrast injections may cause side effects like mild rashes and hives, but, in rare instances, it is also possible for a person to ...

Scientists believe they may have found the reason why some patients get so sick from the contrast dye they’re injected with before magnetic resonance imaging (MRI) scans. While researchers have long ...

Defecography is a procedure that helps identify structural or functional problems with the rectum and pelvic floor (the muscles between the pubic bone and tailbone). Around 24% of women report ...