Magnetic resonance cholangiopancreatography is a noninvasive method of visualization of the bile ducts and ducts of pancreas.
MRI provides for special adaptation of study protocols in such a way as to improve the visualization of the liver, biliary tract and pancreas, and the study itself receives a different name – magnetic resonance cholangiopancreatography (MRCP).
MRCP allows diagnosing various diseases, such as anomalies (malformations), inflammation or tumors of the biliary tract with the help of a non-invasive method of research, so that it is possible to avoid the need for invasive endoscopic retrograde cholangiopancreatography (ERCP). However, if surgical intervention is necessary, ERCP cannot be avoided.
Indication for examination
detection or exclusion of concrements in the biliary tract or gallbladder; identification or exclusion of primary sclerosing cholangitis (PSC); clarification of the diagnosis of benign or malignant stenosis of the biliary tract; polyps of the gallbladder;
gallbladder carcinoma; biliary tract carcinoma, Klatskin tumor: a special form of bile duct cancer with localization in the chylus branching region;
identifying or clarifying the diagnosis of anatomical features: biliary tract developmental defects or postoperative changes, for example, MRHC allows to detect and control biliodigestive anastomoses; identification of options for the normal course of the biliary tract.
visualization of pancreatic ducts to determine the heterogeneity of their caliber or the regions of damage to the ducts, for example, due to pancreatitis (inflammation of the pancreas): unlike ERCP, MRCP can be performed including in acute pancreatitis. Concrements in the duct of the pancreas: are formed in most cases as a result of chronic pancreatitis and visualized as a narrowing of a small portion of the pancreatic ducts. Pancreatic carcinoma: begins to develop in pancreatic ducts and therefore can be detected by MRCP.
Papillary carcinoma: a rare malignant tumor localized directly at the site of the entry of the bile duct into the small intestine. Diagnosis of congenital malformations of the pancreas (e.g., divided pancreas, annular pancreas).
MRCP can be prescribed as a preliminary study for planning and carrying out ERCP, for example, to reduce the incidence of ERCP complications (pancreatitis, perforation, etc.).
MRCP has the same contraindications as any MR-study.
At least 4 hours before the test, patients should refrain from eating.
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