Exam Preparation, MRI

The MRI examination is a diagnostic tool used to visualize parts of the body. No ionizing radiation (x-rays) is used, only a magnet and radio waves are used to produce the images. The examination is not painful. Certain examinations require an injection of a colouring agent (gadolinium) depending on the part of the body being examined. You are asked to remove any metal objects on your body because they can interfere with the magnetic field. Please inform us if you have any implants or metal in your body.

MRI of the brain, head, colon and upper limbs

Instructions: No preparation necessary.

Most MRI examinations of the lower limbs do not require any advance preparation, with the exception of the following examinations:

Magnetic resonance enterography (MRE)

Instructions: Fasting period of 8 hours before the examination and you must arrive earlier to drink a liquid prior to the exam.

Duration: At least 2 hours

Abdominal MRI (adrenal, MRCP, liver, pancreas, kidneys and bladder)

Instructions: Fasting period of at least 4 hours before the examination.

MRI examination with an angiogram of the lower limbs

Instructions: Fasting period of at least 4 hours before the exam.

Rectal MRI

Instructions: Take a fleet enema 1 hour before your appointment and you must not eat breakfast.

Breast MRI 

Instructions: No preparation necessary.

Breast biopsy

Instructions: Wear a brassiere and stop taking Coumadin/aspirin or anticoagulants before the appointment.