Percutaneous transhepatic cholangiogram (PTCA)

How the test is performed:

The test is performed in a radiology department by a radiologist. You will be asked to lie supine (on your back) on the X-ray table. The upper right side of the abdomen is cleansed and a local anesthetic is given. A long, thin, flexible needle is then inserted into the liver; and with guidance from the fluoroscope, the bile duct is found and the contrast medium injected. The contrast medium then flows through the ducts and can be seen on the fluoroscopic monitor. X-ray films are taken of any abnormal findings.

How to prepare for the test:

Inform the health care provider if you are pregnant. You will be given a hospital gown to put on. Remove all jewelry.

Infants and children:
The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experience, and level of trust. For specific information regarding how you can prepare your child, see the following topics as they correspond to your child's age:

• infant test or procedure preparation (birth to 1 year)
• toddler test or procedure preparation (1 to 3 years)
• preschooler test or procedure preparation (3 to 6 years)
• schoolage test or procedure preparation (6 to 12 years)
• adolescent test or procedure preparation (12 to 18 years)

How the test will feel:

There will be a sting as the anesthetic is given and some discomfort as the needle is advanced into the liver. You may be given medication for sedation and/or pain control. The X-ray will cause no discomfort.

Why the test is performed:

The procedure may distinguish between obstructive and non-obstructive jaundice (a yellow discoloration of the skin and eyes caused by an excessive amount of bile in the bloodstream). If there is an obstruction, it will be located.