It uses magnetic resonance imaging to visualize the biliary and pancreatic ducts non-invasively.

MRCP has been slowly replacing endoscopic retrograde cholangiopancreatography (ERCP) as investigation of choice.

MRCP is highly accurate in diagnosing the biliary system, pancreatic duct and accessing surrounding solid organs.

[5] Besides providing information regarding the biliary system, MRCP also provides information regarding surrounding solid organs and blood vessels, thus useful for planning the resection of pancreatic cancer and look for complications of primary sclerosing cholangitis such as liver cirrhosis and cholangiocarcinoma.

Secretin is also given to a patient to increase ductal compliance, making imaging easier.