In a world first, University of Ottawa scientists have introduced a metal-free MRI dye capable of mapping kidney function with unprecedented accuracy. This technique will modernize urology, allow for ...

Medically reviewed by Daniel More, MD A contrast dye allergic reaction can occur after a diagnostic imaging test, such as magnetic resonance imaging (MRI) or computed tomography (CT) scan. The ...

Dear Dr. Roach: My primary care doctor has ordered that I get an MRI scan with and without contrast dye. I have been having head pain every day in one single spot behind my right eye. My question is, ...

Preparing for a Magnetic Resonance Imaging (MRI) scan involves several essential steps to ensure the procedure is both safe and yields the clearest possible images.

Dr. Keith Roach is a physician at Weill Cornell Medical College and New York Presbyterian Hospital. He writes an educational column on infectious diseases, public health and sports medicine. DEAR DR.

DEAR DR. ROACH: My primary care doctor has ordered that I get an MRI scan with and without contrast dye. I have been having head pain every day in one single spot behind my right eye. My question is, ...

A shoulder arthrogram is a technique that uses contrast dye to identify specific shoulder injuries. It’s used in X-rays, CT scans, or MRI scans to highlight areas of soft tissue damage. It’s very ...

The global shortage of iodinated contrast dye, which has forced hospitals to postpone CT scans and other imaging procedures since May, will last until the end of September, the American Hospital ...

One emergency doctor in California said she had a patient who would have gotten scans using contrast dye if not for the shortage. The woman was sent home after multiple other tests turned up nothing, ...

Jeff Silva walked into his CT scan appointment at Good Samaritan Hospital in Brockton looking for answers. A biopsy and MRI had recently diagnosed his prostate cancer, and his doctors had ordered a CT ...

Dr. Roach: My primary care doctor has ordered that I get an MRI scan with and without contrast dye. I have been having head pain every day in one single spot behind my right eye. My question is, is ...