CT Cholangiogram Scans Sydney
A CT Cholangiogram is a specialised CT scan used to visualise the gallbladder and biliary tree, including the bile ducts. It is often performed when ultrasound results are inconclusive or when detailed assessment of biliary obstruction, gallstones, or bile duct injury is required. Medicare-eligible CT Cholangiograms at Advicon Imaging are bulk-billed.
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Description of CT Cholangiogram Scans
A CT Cholangiogram is a non-invasive imaging study designed to assess the gallbladder and the biliary system, which includes the bile ducts, cystic duct, and common bile duct. It is commonly used when patients experience upper abdominal or epigastric pain and when ultrasound findings do not provide enough information.
This scan is particularly useful for detecting gallstones, bile duct obstruction, bile leaks, or stenosis. It is also valuable in postoperative settings—for example, after gallbladder surgery—to evaluate suspected bile duct injury or retained stones. CT Cholangiography provides high-resolution images and 3D reconstructions, allowing clinicians to clearly visualise even small bile ducts and anatomical variations that could impact surgical planning.
The procedure usually involves two parts: a non-contrast CT scan of the abdomen and pelvis, followed by a delayed scan approximately 60 minutes after the administration of a biliary-excreted contrast agent. This allows the biliary tree to become properly opacified for detailed evaluation.
CT Cholangiogram is a widely available alternative when MRI is not suitable due to contraindications such as surgical clips, metallic implants, claustrophobia, or air artefacts that degrade MRCP imaging. At Advicon Imaging, we use advanced CT technology to generate high-quality 3D and maximum-intensity projection images, ensuring accurate diagnosis and optimal patient care. All Medicare-eligible scans are bulk-billed.
Frequently Asked Questions
What is a CT Cholangiogram?
It is a CT scan that visualises the gallbladder and bile ducts using a contrast agent excreted through the biliary system.
Why has my doctor ordered this test?
Your doctor may suspect gallstones, bile duct obstruction, bile leaks, or postoperative complications, especially if an ultrasound was inconclusive.
Do I need to prepare?
Preparation may include:
- Fasting for several hours before your appointment.
- Informing us if you have kidney or liver dysfunction, thyroid disease, or past reactions to contrast.
- Avoiding metal objects on the abdomen.
What happens during the scan?
A non-contrast CT is performed first. You will then wait approximately 60 minutes after receiving a contrast agent that is excreted into the bile ducts. A second CT scan is performed to capture detailed images of the biliary tree.
Is the scan painful?
No. The scan is painless. You may feel mild warmth during contrast administration.
Is the contrast safe?
Most patients tolerate the contrast well. However, CT Cholangiogram is not recommended if your bilirubin level is very high or if you have severe kidney or thyroid dysfunction.
How long does the procedure take?
The entire appointment takes around 1.5 to 2 hours due to the delayed imaging phase.
Can I drive afterward?
Yes. You can resume normal activities unless advised otherwise.
Will I receive 3D images?
Yes. This study includes 3D reconstructions and maximum-intensity projection views to assist diagnosis.
When will my doctor get the results?
Results are typically available within 24–48 hours, with urgent findings prioritised.
Is the scan bulk-billed?
Yes. Medicare-eligible CT Cholangiograms are fully bulk-billed at Advicon Imaging.