Casualty First is now open on an appointment only basis, Monday to Friday 8am – 6pm and Saturday 12th/19th of December 8am – 6pm
To book an appointment, click here.

We are offering Outpatient appointments. In many cases these can be conducted virtually. To make an appointment, please call: 0207 806 4060.

Do NOT visit the Hospital if you have any COVID-19 symptoms. Please visit the Track and Trace website.

GI Imaging

The Diagnostic and Imaging Department at The GI Unit is a state-of-the-art facility, offering a comprehensive Gastrointestinal Radiology service, including CT 3D Virtual Colonoscopy, CT & MRI enterography.

The GI Unit at the Hospital of St John & St Elizabeth was the first hospital in the UK to install the revolutionary Toshiba Genesis CT Scanner, offering patients a more spacious experience, more detailed imaging results and the lowest radiation dose of any CT scanner available today.

A full list of our GI imaging options are detailed below.

GI Imaging

Our GI imaging service is complimented by state-of-the-art imaging equipment as well as expert consultants and nurses.  The service offers a comprehensive Gastrointestinal Radiology service, including CT 3D Virtual Colonoscopy, CT & MRI enterography.


Fibroscan is an innovative, painless and non-invasive method for evaluating changes in the liver. This simple ten minute liver scan will spot any potential liver damage or disease, ending any unwarranted concern your lifestyle may have impacted on your health. Read more about Fibroscan.


Using a long narrow and flexible telescopic camera, a colonoscopy allows your Consultant to uncover causes of symptoms such as diarrhoea or changes in bowel habits. Read more about Colonoscopy.

Virtual Colonoscopy

Virtual Colonoscopy or CT Pneumocolon is an advanced type of x-ray exam that uses computed tomography (CT or “CAT”) scanning to obtain an interior view of the colon (the large intestine). Read more about Virtual Colonoscopy.


An endoscopy is a procedure that allows the inside of your body to be examined using a long, thin, flexible tube, known as an endoscope. An endoscope has a light and camera at one end of the tube and relays images from the inside of your body to a television screen. Read more about Endoscopy.

Flexible Sigmoidoscopy

A flexible sigmoidoscopy is a procedure used to look inside the rectum (back passage) as well as the lower part of your large bowel. Read more about Flexible Sigmoidoscopy.

Gastroscopy (OGD)

A gastroscopy is a procedure that uses a thin and flexible tube, known as an endoscope, to look inside the oesophagus (gullet), stomach and first part of the small intestine. Read more about Gastroscopy

Book GI Imaging Appointment

To book an initial consultation with one of our expert consultants you can call us on 020 7078 3802 or email Our consultants have a wealth of experience in all types of GI conditions and can ensure you receive the most suitable imaging procedure for your needs.

Make an Enquiry

Make an Enquiry

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