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MRI is safe and does not involve any ionising radiation (x-rays). 

However, because it uses a large magnet to work, MRI scans are not suitable for everybody.

We ask these safety questions to determine if you can take part and sometimes, we would need more information before you take part in the research MRI scan.

You can see the questions that we ask, and the reason we ask them in this document, or by clicking on the question links below.