Magnetic resonance enterography (MRE)

​What is an MRE?

MRE stands for Magnetic resonance enterography. An MRE is a special type of MRI (Magnetic Resonance Imaging), which uses a contrast material, or highlighter, to create detailed images of the small intestine. Like an MRI, an MRE uses a powerful magnet to take pictures of inside the body without using radiation.

During an MRE, your child will be asked to lie down and remain still for 45 to 60 minutes. For this reason, an MRE is recommended for children over the age of 10.

How to prepare for an MRE

Your child should not eat or drink anything six hours before the MRE. Before the six hours of no food or drink, make sure you give your child a healthy snack. If your child is taking timed medications, they can continue taking the medications with a small amount of water only.

What to expect before, during and after an MRE

1. Arrive and check-in at the MRI Department. A screening form will be completed.
2. Your child will be asked to remove all jewelry and clothing. A hospital gown will be given to your child to wear.
3. An IV will be started and used to give your child the contrast material, or highlighter, during the MRE.
4. Your child will be given a sweet drink (Sorbitol) before and during the MRE. This will make sure the small bowel is active and moving for the pictures. Sorbitol tastes like Kool-Aid and may cause your child to feel nauseous.
5. An MRI technician will ask your child to lie down on a table and remain still. During the MRE, the technician may also ask your child to change positions, hold their breath, or drink more Sorbitol.
6. Once the MRE is finished and you have left the MRI Department, your child can eat and/or drink.
7. Your child may have an upset stomach with frequent bowel movements after the test because of the Sorbitol. This usually passes within a few hours.
8. Your child may need to stay home from school and avoid physical activity the day after the MRE.

At SickKids

Someone from the MRI Department will call you to set up an appointment. If you need to change or cancel your appointment, please call the MRI Department at (416) 813-5774.

The MRI Department is located on the Service Level (one floor below the Main Floor of the hospital). Once you are on the Service Level, follow the blue line on the floor to the department.