An MRI scan provides detailed pictures of the inside of your body.

The scanner is a large tube that you lie in.

It can give us information that helps us make a diagnosis and find the best treatment for you.

Unlike X-rays and CT scans, MRI scans do not use ionising radiation. It is a very safe procedure for most people.

However, the scan uses strong magnets. This means it might not be suitable if you have any metal in your body (such as heart pacemakers) .

We'll ask you to complete and sign a safety questionnaire before your scan, to make sure it is safe for you to be scanned.

You can read more about MRI scans on the NHS website.

Our consultants

Our radiology page has information about the consultants in our service.

Research and clinical trials

Research is vital to improving the care that you receive when you're unwell. You can help improve healthcare by taking part in research studies at our Trust. During your appointment, ask your healthcare professional about research. They'll be happy to tell you about research studies you could be eligible to join.

Last updated: August 2023

Contact us

Phone 020 7188 5542 and select option 2

We're open Monday to Friday, 9am to 5pm.


MRI scans take place at Guy's Hospital and St Thomas' Hospital. Please check your appointment letter carefully before attending.

St Thomas' Hospital

1st floor, Lambeth Wing, St Thomas’ Hospital, Westminster Bridge Road, London SE1 7EH

Guy's Hospital

2nd floor, Tower Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT

Information about MRIs for children under 16 can be found on the Evelina London Children’s Hospital website.

Do you have any comments or concerns about your care?

Contact our Patient Advice and Liaison Service (PALS)

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