The MRCP it is a diagnostic imaging technique based on the magnetic resonance imaging that allows a detailed study of the bile ducts, the gallbladder and the pancreatic ducts. It is also known as magnetic resonance cholangiopancreatography (MRCP).
This is a test non-invasive, as it does not require introducing an endoscope into the bile ducts. The images obtained make it possible to assess whether there are any abnormalities in the path of the bile or pancreatic secretions.
The MRCP can be used to study situations such as:
- Biliary stones: it makes it possible to detect stones that have left the gallbladder and are in the bile duct.
- Dilatations or narrowings of the ducts: help locate potential blockages.
- Pancreatic abnormalities it allows the study of the pancreatic duct and its relationship with certain lesions.
- Pancreatic cystic lesions can help to determine whether a lesion communicates with the pancreatic duct.
- Tumours or lumps: Can you provide information on disorders affecting the biliary or pancreatic ducts.
Practical example: suspected gallstone in the bile duct
A person may present with abdominal pain, abnormal liver function tests or jaundice and have an ultrasound scan showing a possible bile duct dilatation.
In this situation, the MRCP it can be used to obtain more precise images of the ducts and check if there is a stone, a narrowing or another cause that is obstructing the normal flow of bile.
MRCP and ERCP: are they the same?
Although both techniques allow the study of the biliary and pancreatic ducts, they do not serve the exact same function.
The MRCP it is fundamentally a diagnostic and non-invasive test. It allows images to be obtained using magnetic resonance imaging without the need to directly access the ducts.
The ERCP (endoscopic retrograde cholangiopancreatography), on the other hand, is an endoscopic procedure currently used mainly for therapeutic purposes. For example, it can make it possible to remove gallstones from the bile duct, place stents or treat certain strictures.
For this reason, in many patients magnetic resonance cholangiopancreatography can be performed first to confirm or rule out an abnormality and subsequently assess whether it is necessary to carry out an endoscopic procedure.
Furthermore, by not using ionising radiation, MR cholangiopancreatography can be quite useful when it is necessary to obtain a detailed view of the biliary system y pancreatic non-invasively.