Cholangiography is a medical imaging technique used to visualize the bile ducts, which are tubes that carry bile from the liver to the gallbladder and small intestine. This procedure helps diagnose conditions such as bile duct obstructions, strictures, or stones. It can be performed using X-rays, MRI, or endoscopic methods. During cholangiography, a contrast dye is injected into the bile ducts, making them visible on imaging scans. The results assist healthcare providers in planning appropriate treatments, such as surgery or other interventions, to address any identified issues within the biliary system.