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MRI Physics

Image shows an MRI machine.


In this section you will find information on the MRI Physics group, which is part of the Department of Medical Physics and Clinical Engineering.


What is MRI?

Magnetic resonance imaging (MRI) allows us to see inside your body without actually going into the body.

The MRI scanner uses strong magnetic fields and radio waves to produce the detailed images which can be used to help find out or diagnose what's wrong, plan treatment for any conditions and check on how well previous treatments have worked.

If you need an MRI scan you will be asked to lie on a bed - either feet first or head first depending on which part of your body is being scanned - and the bed will move inside the scanner, which is like a large tube.

As the scanner can be noisy, you will be given earplugs or headphones to wear and may be able to listen to music.

It is very important to keep as still as possible during the scan, which lasts 15 to 90 minutes.

Go to the 111 Wales website to find out more about what happens before, during and after an MRI scan.


What do MRI Physics do?

Our role is varied. We advise on MRI scan safety, ensure that the MRI scanners generate high-quality images, teach students and train other staff groups including radiographers and radiologists. We are also active researchers aiming to introduce new scanning techniques. 










Rydym yn croesawu gohebiaeth a galwadau ffôn yn y Gymraeg neu'r Saesneg. Atebir gohebiaeth Gymraeg yn y Gymraeg, ac ni fydd hyn yn arwain at oedi. Mae’r dudalen hon ar gael yn Gymraeg drwy bwyso’r botwm ar y dde ar frig y dudalen.

We welcome correspondence and telephone calls in Welsh or English. Welsh language correspondence will be replied to in Welsh, and this will not lead to a delay. This page is available in Welsh by clicking ‘Cymraeg’ at the top right of this page.