MR Enterography

What is it?

MRE stands for magnetic resonance enterography. It is a minimally invasive procedure that allows for the evaluation of the small bowel.

Why is it done?

MRE can indicate whether there is inflammation, bleeding, fistulae, abscesses, or other issues in the bowel. It can also help us determine whether or not treatment for IBD is working. 

How does it work?

The procedure uses a magnetic field to create detailed images of the organs, particularly the small bowel. Oral contrast dye is ingested in order to highlight the small bowel. IV contrast is usually also injected.


There is no radiation involved in this procedure.

MRE is better than CT for evaluating the soft tissues.

What to expect

Prior to the procedure, you will be given water and contrast material to drink. The MRE will begin about 45 minutes after you start drinking.

You will also have an IV started by a nurse to be given fluids and/or injectable contrast in addition to the oral contrast.

Let your doctor know if you…

  • Are pregnant
  • Have kidney issues
  • Have any allergies
  • Have any implanted medical devices (defibrillator, pacemaker, hearing aids, cochlear implants, etc)