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Magnetic Resonance Cholangiopancreatography
by Rebecca J. Stahl, MA
An MRI uses magnetic waves and computers to make pictures of the inside of the body. A magnetic resonance cholangiopancreatography (MRCP) is a special type of MRI scan. It is used to make pictures of the hepatobiliary and pancreatic systems.
Reasons for Test TOP
MRCP is used to examine the:
Your doctor may order this test to look for:
Possible Complications TOP
Complications are rare. If you are planning to have an MRCP, your doctor will review a list of possible complications.
MRCP can be harmful if you have metal inside your body including:
Make sure your doctor knows of any internal metal before the test.
Some people have a reaction to the contrast dye. The contrast is chemical that improves the details in the pictures. In some people, the contrast can cause allergic reactions or kidney problems.
Be sure to discuss these risks with your doctor before the test. Let your doctor know about any allergies or unrelated illnesses you may have.
What to Expect TOP
Prior to Test
In the days leading up to the MRCP, you will be asked about:
You may be asked to stop eating or drinking for about 2-4 hours before the MRCP.
Right before the test, you will be asked to remove any metal objects. This includes jewelry, hearing aids, and glasses.
Description of Test
You may be given a mild sedative to help you relax.
If a contrast dye is being used, a small IV needle will be inserted into your hand or arm.
You will be asked to lie very still on a sliding table. The table will slide into a narrow, enclosed cylinder. The technician will give you directions through an intercom. Images will be taken of the organs and ducts in your abdomen. When the exam is done, you will slide out of the machine. If you have an IV needle, it will be removed.
In some cases, both an MRCP and an MRI scan of the rest of the abdomen will be done.
After Test TOP
You will be asked to wait while the images are checked. More images may be needed.
If you were given a sedative, do not drive, operate machinery, or make important decisions until it wears off completely.
How Long Will It Take? TOP
The exam may take 15-45 minutes. The length will depend on whether you need an MRI scan also.
Will It Hurt? TOP
The contrast dye injected can cause some discomfort during the injection.
A radiologist will look at the image. A report will be given to your doctor. You will meet with your doctor to go over the results.
Call Your Doctor TOP
Call your doctor if any of these occur:
National Institute of Diabetes and Digestive and Kidney Diseases
Radiology Info—Radiological Society of North America
Canadian Association of Radiologists
Canadian Radiation Protection Association
Magnetic resonance cholangiopancreatography (MRCP). Radiology Info—Radiological Society of North America website. Available at: https://www.radiologyinfo.org/en/info.cfm?pg=mrcp. Updated January 23, 2017. Accessed April 3, 2018.
MRCP scan. Patient website. Available at: https://patient.info/health/mrcp-scan. Updated May 25, 2016. Accessed April 3, 2018.
Non-invasive tests. The Pancreas Center—Columbia University Medical Center website. Available at:
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Accessed April 3, 2018.
Last reviewed April 2018 by EBSCO Medical Review Board Daus Mahnke, MD
Last Updated: 6/24/2013
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