What is MRI (Magnetic Resonance Imaging)?
MRI is a way to take pictures of the body using a large magnet, radio waves and a computer. The MRI does not use radiation, and no side effects have been reported from being in the magnetic field.
The MRI scanner is a large magnet with a circle-shaped opening. Some people say it looks like a tunnel.
There is a table that moves into the opening of the scanner during the test and the patient may hear a series of very loud noises such as hums, knocks, beeps and clicks. These clicks are normal sounds of the scanner.
The technologist will be able to talk with your child and tell them when the noises will occur and how long the sounds will last.
The scanner does not touch or hurt the patient. But, if an IV is required for contrast, minimal pain may occur during IV insertion. Contrast is a dye given to enhance the pictures.
MRI Procedure
The entire exam may take from 60-120 minutes depending on the body part being scanned. Expect to be in the department for at least two hours. Your child must hold still for each series of pictures that are three to eight minutes long. Your child may be able to wiggle slightly in between pictures. If your child cannot hold still, it may be necessary to schedule the appointment with anesthesia or sedation.
A parent or guardian, who has been MRI screened, is welcome in the scan room if the child is awake. Patients scheduled to be awake for the procedure may bring in a DVD to watch during the MRI procedure. We also have a large selection of DVDs from which your child can choose.
Before You Arrive
If your child is scheduled with anesthesia or sedation, an anesthesia imaging nurse will contact you with preparation instructions. These must be followed carefully.
If your child is not scheduled with sedation or anesthesia, they may be asked to not eat four hours or drink two hours before the appointment.
If your child has any surgically placed implants, please bring all identifying information that you have about the device.
When You Arrive
Radiology staff will ask you to fill out some forms asking about allergies, medications, possibility of pregnancy, surgery, and any implanted metal objects.
For your child's safety and to ensure the quality of their MRI exam, they will be asked to change into a hospital garment. All piercings and jewelry will need to be removed before the exam.
All metal and magnetic objects must be kept outside the room, including keys, jewelry, credit cards, beepers, cell phones and portable computers. Lockers are available to lock up and secure your personal items.
After the MRI
Without sedation or anesthesia, your child should be able to resume normal activities immediately, unless your child’s physician instructs you otherwise.
Results will be available to the ordering doctor and in MyChart within 24 hours.
