Sonography

IV cannulation under US guidance

P P D F G framework

Probe

Preset

Depth

Frequency/ focus

Gain

Ultrasound

evaluation of biliary tract

Endoscopic ultrasound is extremely accurate in evaluating pancreatic pathology that is not easily visualized on CT scanning, such as gastrinoma.

ERCP

excellent for detecting strictures, stones, and neoplastic causes of obstruction in pancreatic duct and biliary system

allows intervention, so therapeutic

The most common complication of ERCP is acute pancreatitis (~10%)

MRCP

less invasive

diagnostic purpose only

Barium Studies