Gastrointestinal & hepatobiliary imaging

CT colonography, MRI liver, MRCP, pancreatic imaging and specialist bowel assessment — including accredited CT colonography for colon cancer investigation.

Specialist imaging of the gut, liver & biliary system

The gastrointestinal tract and hepatobiliary system — encompassing the liver, gallbladder, bile ducts and pancreas — require specialist imaging interpretation for accurate diagnosis. Our consultants have subspecialist expertise across this broad area, with particular depth in CT colonography and hepatobiliary MRI.

Modern imaging can assess the bowel non-invasively, characterise liver lesions with high accuracy, and evaluate the bile ducts and pancreas in extraordinary detail — guiding treatment decisions that previously required invasive procedures.

Our services

What we offer

CT colonography (virtual colonoscopy)

CT colonography (CTC) is a minimally invasive technique that uses CT imaging to produce detailed three-dimensional images of the colon and rectum, after bowel preparation. It is highly accurate for detecting colonic polyps and cancer. CTC avoids the need for endoscopy in many patients and is particularly well suited to patients who are unable to tolerate or who prefer to avoid traditional colonoscopy. It also allows simultaneous assessment of the rest of the abdomen and pelvis. Three of our consultants have specialist expertise in colonography.

Preparation: CT colonography requires a 48-hour low-residue diet and bowel preparation (laxatives and oral contrast). We will provide comprehensive written instructions at the time of booking.

MRI liver & hepatobiliary

MRI is the most accurate modality for characterising liver lesions — distinguishing benign cysts, haemangiomas and focal nodular hyperplasia from metastases and hepatocellular carcinoma (HCC). We use liver-specific contrast agents (Primovist/gadoxetate) when indicated for optimal hepatic assessment.

MRCP — bile duct & pancreas

MRCP (MR cholangiopancreatography) non-invasively images the biliary tree and pancreatic duct without the need for endoscopy or contrast injection. It is the imaging test of choice for suspected bile duct stones, strictures, primary sclerosing cholangitis and pancreatic duct assessment.

Abdominal CT

Comprehensive CT of the abdomen and pelvis for pain, weight loss, unexplained symptoms and oncological staging. Including CT of the pancreas with dedicated perfusion protocols where needed.

Small bowel imaging

MR enterography and CT enterography for small bowel assessment including Crohn's disease activity, obstruction and small bowel tumours.

Abdominal ultrasound

Assessment of the liver, gallbladder, spleen, kidneys and aorta. Particularly valuable as the first line investigation for right upper quadrant pain and suspected gallstones.

Key conditions

Conditions we help investigate

Colorectal cancer

CT colonography for polyp and cancer detection. MRI rectum for rectal cancer staging. CT chest, abdomen and pelvis for staging and surveillance.

Liver lesions

Characterisation of incidental liver lesions found on ultrasound or other imaging. Surveillance of known liver disease. Staging of liver metastases.

Gallstones & biliary disease

Ultrasound for gallstones. MRCP for bile duct stones, common bile duct assessment, primary sclerosing cholangitis and cholangiocarcinoma investigation.

Pancreatitis & pancreatic masses

CT and MRI for acute and chronic pancreatitis, pancreatic cystic lesions, and characterisation of solid pancreatic masses.

Inflammatory bowel disease

MR enterography for assessment of Crohn's disease activity, complications and treatment response. CT for acute complications.

Change in bowel habit

CT colonography as a non-invasive alternative to colonoscopy for investigation of change in bowel habit, rectal bleeding and iron deficiency anaemia.

Patient questions

Common questions

For the detection of polyps larger than 6mm and colorectal cancer, CT colonography performed and reported by a specialist (such as our accredited consultant) has sensitivity and specificity comparable to colonoscopy. It does not allow biopsy or polyp removal — so if a significant lesion is found at CTC, colonoscopy may be recommended as a follow-up. For many patients, particularly older adults or those with comorbidities, CTC is an excellent and well-tolerated alternative to endoscopy.
The vast majority of liver cysts found incidentally on ultrasound are simple benign cysts — they have no lining tissue, contain clear fluid, and require no treatment. However, some lesions described as cysts on ultrasound may benefit from further characterisation with MRI to exclude more complex lesions. Your GP or specialist will advise whether further imaging is needed based on the ultrasound description.
Yes. CT colonography requires bowel preparation — a low-residue diet for 48 hours before the scan, followed by laxative preparations and oral contrast (faecal tagging). This is less extensive than colonoscopy preparation and is generally well tolerated. We provide detailed instructions and are happy to answer any questions about the preparation process when you book.

Book a GI or hepatobiliary scan

Fast appointments in Bristol with accredited, subspecialist reporting. Contact us to arrange your scan.