The PTC test is performed in a specialised interventional radiology suite using imaging guidance to ensure accuracy and safety. This advanced Percutaneous transhepatic cholangiography procedure is carefully planned and performed by experienced interventional radiologists to provide detailed biliary imaging while maintaining patient comfort. The procedure allows direct visualisation of bile ducts and helps diagnose blockages, tumours, strictures, or bile flow abnormalities that may not be clearly seen with other tests.

The step-by-step PTC radiology procedure includes:

· Local anaesthesia and sedation: The procedure begins with local anaesthesia to numb the skin and sedation to help the patient remain comfortable and relaxed. This ensures the PTC test is safe and causes minimal discomfort.

· Needle insertion into the liver: Once the skin is numbed, the interventional radiologist carefully inserts a thin needle through the skin into the liver using real-time imaging guidance. This precise approach ensures accurate access to the bile duct.

· Contrast dye injection and imaging: After the needle enters the bile duct, contrast dye is injected. As the dye flows through the biliary system, X-ray images are taken in real time. This creates a detailed map of the bile ducts and helps doctors identify blockages, narrowing, tumours, or other abnormalities.

· Diagnostic or therapeutic decision: If the PTC test is diagnostic only, the needle is removed after imaging. However, if a blockage is detected, the procedure can immediately be converted into a treatment. This may include placing a drainage tube (PTBD) to relieve bile buildup and improve bile flow.

· Procedure duration: The entire Percutaneous transhepatic cholangiography procedure typically takes about 60 minutes, depending on complexity and whether additional treatment is required.

This step-by-step approach ensures accurate diagnosis and allows immediate treatment when needed, making the PTC test an essential tool in advanced biliary imaging and liver care.

PTC (Percutaneous Transhepatic Cholangiography) Test