PTCA; Cholangiogram - PTCA
There is a slight chance of an allergic reaction to the contrast medium (iodine).
There is a slight chance of excessive blood loss, blood poisoning (sepsis), and inflammation of the bile ducts.
This test has been mostly replaced by an endoscopic retrograde cholangiopancreatography (ERCP) test. A PTCA may be done if an ERCP test cannot be performed or has failed.
A magnetic resonance cholangiopancreatography (MRCP) is a newer, noninvasive imaging method, based on MRI. It provides similar views of the bile ducts, but is not always possible to perform.