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A percutaneous transhepatic cholangiography (PTC) is an X-ray examination of the bile ducts through an IV. A needle is introduced through the skin into the liver, depositing the dye (contrast). The bile duct structure is then viewable via the X-ray.
Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.
Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.