Gallbladder stones: imaging and intervention

Area of Science:

• Gastroenterology
• Radiology
• Medical Imaging

Background:

• Gallstone disease (cholelithiasis) and its complications are common, with significant advancements in diagnostic and interventional techniques.
• Imaging plays a crucial role in the diagnosis and management of gallbladder and biliary tract diseases.

Purpose of the Study:

• To review the current imaging modalities for cholelithiasis and its complications.
• To highlight the role of ultrasonography (US) as the primary diagnostic tool.
• To discuss interventional radiology's contribution to managing gallstone disease.

Main Methods:

• Review of imaging techniques including ultrasonography, oral cholecystography, cholescintigraphy, endoscopic retrograde cholangiopancreatography (ERCP), and magnetic resonance cholangiopancreatography (MRCP).
• Emphasis on characteristic ultrasonographic findings for gallstone detection.
• Discussion of interventional procedures like percutaneous cholecystostomy.

Main Results:

• Ultrasonography is the method of choice for gallstone detection, characterized by echogenicity, mobility, and posterior acoustic shadowing.
• While oral cholecystography is effective, its use has declined with the rise of US.
• US is the primary modality for suspected acute calculous cholecystitis, with secondary findings aiding diagnosis.
• ERCP and MRCP demonstrate superiority over US in detecting choledocholithiasis.
• Interventional radiology offers alternatives to surgery for gallstone complications.

Conclusions:

• Ultrasonography is the cornerstone for imaging gallstones and guiding the diagnosis of related complications.
• Advanced imaging and interventional techniques have expanded treatment options beyond traditional surgery.