Radiology• Updated 21 October 2026
MRCP
A special MRI scan of the bile ducts, gallbladder and pancreatic duct.
Results: A few days
Quick Summary
Primary Purpose
To look for bile duct stones and blockages without an endoscope.
What It Measures
Images of the bile and pancreatic ducts.
Preparation
Fast for 4–6 hours; MRI safety checks.
Overview
MRCP doesn't use dye injected into the ducts or radiation.
It's often done before deciding on ERCP.
What It Measures
Bile ducts
Stones and narrowing.
How It's Performed
- 01
Safety check
Remove metal.
- 02
Scan
Lie still in the MRI scanner.
- 03
Afterwards
Eat normally.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.