Wisconsin patients who experienced renal failure or kidney dysfunction may be interested to learn that some drugs used when performing an MRI may leave toxins behind. Magnetic resonance imaging is a machine that may be used to obtain images of a person's soft tissues and internal body structures. To improve the quality of the images, many doctors use an intravenous drug that makes the body structures more visible.
According to a report published on June 16, however, it appeared that some of the drugs used could pass through the blood brain barrier and leave harmful residue in the person's brain. Some of the intravenous drugs include gadolinium, which happens to be toxic. Until the study was published, it was believed by medical professionals that the gadolinium was harmlessly excreted by the patient later on. Depending on the patient's heath, however, the small amount that may be left behind cause serious damage.