Magnetic resonance cholangiography: Current and future perspectives

Area of Science:

• Radiology
• Medical Imaging
• Gastroenterology

Background:

• Magnetic resonance cholangiography (MRC) is the established standard for biliary duct imaging.
• Advancements in three-dimensional (3D) sequences enhance spatial resolution and signal-to-noise ratio.

Purpose of the Study:

• To highlight the diagnostic capabilities of MRC in various biliary duct pathologies.
• To emphasize the role of 3D fat-suppressed T1-weighted MR images in detecting intrahepatic calculi.
• To discuss the utility of MRC in assessing cholangiocarcinoma resectability and diagnosing primary sclerosing cholangitis.

Main Methods:

• Utilizing three-dimensional (3D) sequences for improved spatial resolution and signal/noise ratio.
• Systematically obtaining 3D fat-suppressed T1-weighted MR images alongside MRC.
• Comparing MR imaging performance with CT for vascular assessment in cholangiocarcinoma.

Main Results:

• MRC effectively diagnoses cholangiocarcinoma, primary sclerosing cholangitis, and biliary lithiasis.
• MR imaging performance is comparable to CT for evaluating arterial and portal vein extent.
• Specific imaging patterns for primary sclerosing cholangitis and consequences of duct obstruction are identified.

Conclusions:

• MRC is a key modality for diagnosing and assessing biliary duct diseases, including cholangiocarcinoma, PSC, and lithiasis.
• Advanced MR techniques improve diagnostic accuracy and provide functional insights.
• Limitations in distal intrahepatic duct resolution persist.