MRI

Canterbury Medical Imaging - CMI -  MRI - Magnetic Resonance Imaging Magnetic Resonance Imaging produces detailed cross-sectional images of most parts of the body. These images are obtained without using x-rays. MRI uses two naturally occurring forces to generate images of the body – magnetic fields and radio waves. Through a complex process, a computer processes signals received from protons in the body into a series of single images. These images are then interpreted by the Specialist MRI Radiologist.

RISKS

Due to the strong magnetic field of the scanner some patients may not be able to have an MRI examination. These include people with cardiac pacemakers, cochlear implants, metal fragments in the eye and metal clips on blood vessels in the brain. You will be asked to complete a questionnaire prior to scanning to determine whether metal in your body is safe to be placed in the magnet. For those who require an injection of Contrast during the scan there is a small risk of allergic reaction. Prior to your examination we require you to complete a form outlining allergies or extreme health conditions you have. Please call us directly is you have any concerns regarding metal in your body, or have had recent surgery.

THE PROCEDURE

On arrival at your appointment we will go through the answers on your questionnaire with you to ensure it is safe to proceed and you are comfortable. The MRI Radiographer performing the scan will take you through to change into a gown and will get you to remove all jewellery, hairpins, credit cards, keys, phones etc from your body. All valuables are locked away during your scan for your piece of mind. The Radiographer will endeavour to make you as comfortable as possible on the scanning bed. It is vital that you keep still when we are scanning, so if you have difficulty lying flat, have poorly controlled pain or suffer from claustrophobia please discuss this with us prior to your scan. The MRI Radiographer performs the scan from an adjacent room, but will have contact via an intercom and you are provided with an emergency buzzer. The Radiographer will be observing you at all times through a large window. The machine makes a continuous tapping sound whilst scanning and you will be provided with earplugs or headphones to reduce any discomfort from the noise. Occasionally we will ask your consent to administer a colourless contrast agent into a vein in your arm, this gives us additional information.

PREPARING FOR YOUR MRI

You will be advised when you phone for your appointment whether you require any special preparation. If you require the injection of Contrast you will be asked not to eat or drink 2 hours prior to your appointment. On booking your appointment, the receptionist will send out a questionnaire to you. We require you to thoroughly complete this prior to your appointment and bring with you. If you are unsure of any of the answers please consult your doctor or us directly before your appointment.

YOUR RESULTS

After the examination you are able to return to your normal activities.The results are not immediate as there are literally hundreds of images for the Radiologist to read, a process which takes some time. After reviewing your scans the Radiologist will send a report to your doctor.

APPOINTMENTS

You or your doctor will need to fax us the referral form in order for us to estimate cost and/or the length of the procedure. We advise those patients with medical insurance to contact their insurance company prior in regard to policy approval or policy cover for MRI. If you have any further questions about MRI or wish to make an appointment please feel free to call us on 03 375 4050.