Everything you need to know about MRI

How MRI scans work

MRI is a tunnel that uses a powerful magnet and radiofrequency pulses to collect signals from hydrogen protons in your body. The magnet is always on and therefore no metal can be taken into the room. You must disclose any metallic implants when you make your booking.
An MRI scan can be used to examine most parts of the body, including:

What you can expect

An MRI scan is generally non-invasive. The radiologist may inject dye (Gadolinium) towards the end of the procedure to collect further information.

MRI scans are loud due to switching electronic currents directed through coiled electromagnets. Ear plugs or headphones are used during the scan, allowing you to listen to music. You’ll also be given a buzzer to speak with the radiographer if necessary.

The day of the scan

The night before Eat and drink as normal
(unless told otherwise)
Day of scan Bring any previous imaging for comparison

Arrive 20 mins prior to fill out paperwork
The MRI Lie on scan table
and remain still
After the scan
Your MRI will be analysed and reported

Patient stories

MRI stands for Magnetic Resonance Imaging, and uses a strong magnetic field and radio waves to collect images.


No. You will not feel anything. A call button will be given to you before the exam is started. It will allow you to maintain two way communication with the technologist at any time during the exam.
No. The MR scanner can scan almost any part of the body but each scan is limited to a specific area. It can take from 30-60 minutes to scan each area.
The area of the scanner that creates the images is located in the centre of the magnet and is called the isocentre. Therefore, in order to scan your head most of your upper body will be in the scanner. The same is true when imaging the spine and upper extremities.

No, an MRI will not cause fillings in your teeth (if in proper condition) to dislodge or come out. The metal in most fillings is not affected by the MR system’s magnetic field. However, fillings may cause some distortion of the images if you are having a scan of your neck, brain or facial area.

Meet Dr Peter Zheng

Consultant Radiologist, Lumus Imaging, Brisbane

“We are constantly adopting the latest technology and ideas, expanding into regional, rural and metropolitan areas, and attracting professionals with genuine talent and enthusiasm at every level. “

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