ERCP procedure uses two techniques, i.e. X-Ray and endoscopy. Check ERCP test procedure along with its steps, stent, complications, and recovery time here. Learn about ERCP (EndoscopicRetrograde Cholangiopancreatography Procedure). What are ERCP indications. How long does an ERCP test take. ERCP prep and recovery. ERCP is a medical procedure to examine and treat the bile ducts, pancreatic duct, and gallbladder. Learn about its history, indications, steps, benefits, risks, and comparison with other diagnostic tools. What is ERCP ? ( Endoscopic Retrograde Cholangio-Pancreatography ) ERCP is a procedure that allows your doctor to see the small tubes inside your body called the pancreatic and bile ducts. These tubes are near your stomach. They carry digestive juices from your liver and pancreas to the intestines. For ERCP , your doctor uses a flexible lighted tube called an “endoscope.” The endoscope, or scope, is about as thick as your index finger. It goes through your mouth into your stomach and the ...