MRI Information

What is an MRI?

MRI (Magnetic Resonance Imaging) uses a powerful magnet and radio frequency pulses alongside sophisticated computers to produce highly detailed cross sectional images of the human body. MRI uses no ionising radiation and has no known side effects. Some patients cannot be scanned as the strong magnetic field can affect some implants and devices such as cardiac pacemakers etc. It is therefore essential that every person entering the scanning room has completed a safety questionnaire. Please also inform the MRI staff if you have any allergies, are diabetic, on Metformin or have any renal complications.

If possible, please wear loose fitting clothing without zips or metal buttons and remove jewellery and watches. Hospital gowns are available if required.

Safety

It is necessary that you inform the Imaging Team before your arrival if you have any implants, or have answered yes to any of the safety questions, as an MRI may not be suitable for you and post a safety risk.

Your scan

During the scan you will be asked to lie on a table and scanning equipment (coils) will be placed around the area under investigation. The table will then slide into a light, open ended tunnel (the magnet). Some patients may find this a little restricting, but every effort is made to ensure you’re comfortable. The scanner is very noisy but headphones are provided. You can either bring a CD with you or alternatively you can listen to a radio station of your choice.

How long with the scan take?

The MRI scan will take between 30 minutes to 1 hour, depending on the scan requested. In some instances when multiple areas are being scanned this can be significantly longer. Please clarify your scan time with the Imaging staff.