Percutaneous means "through the skin," and transhepatic means "through the liver." In this procedure, your doctor inserts a thin needle through your skin and into your bile ducts. The needle injects dye into your bile ducts so the image will show up on X-rays. The X-rays will help your doctor determine the presence of a tumor in your bile ducts.
M Ben. Hunley, MD
Location and Office HoursXray Department
Greenwood, SC 29646
- Self Regional Healthcare
What is a percutaneous transhepatic cholangiogram?
Johns Hopkins Medicine answered
Why is a CT scan of the chest better than a chest x-ray?
Brigham and Women's Hospital answeredComputed tomography (CT or CAT scan) of the chest, a noninvasive diagnostic imaging procedure, can provide more detailed information about organs and structures inside the chest than standard x-rays of the chest, thus providing more information related to injuries and/or diseases of the chest (thoracic) organs.
CT scans of the chest may also be used to visualize placement of needles during biopsies of thoracic organs or tumors, or during aspiration (withdrawal) of fluid from the chest. CT scans of the chest are useful in monitoring tumors and other conditions of the chest before and after treatment.
What should I think about if I have a lumbar spine CT scan?
- Sometimes your CT test results may be different than those from other types of X-ray tests, magnetic resonance imaging (MRI), or ultrasound scans, because the CT scan provides a different view.
- Children who need a CT scan may need special instructions for the test. If the child is too young to hold still or is afraid, the doctor may give the child a medicine (sedative) to help him or her relax.
- If your child is scheduled for a CT scan, talk with your child's doctor about the need for the scan and the risk of radiation exposure to your child.
- CT results are often compared to positron emission tomography (PET) results to help find cancer. Some new scanners do both scans at the same time.
- MRI may give more information than a CT scan about the spinal discs and spinal cord.
- When a CT scan of the spine is done with a myelogram, it is called a CT myelogram. An MRI of the spine is often done in place of a CT myelogram.
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