Linear endoscopic ultrasound of the liver: a practical, landmark-based approach to segmental orientation

Since its development, the use of endoscopic ultrasonography (EUS) in the pancreas and the biliary tract has become increasingly important.The accuracy of EUS varies depending on the experience of the endoscopist.Hence, quality control measures using appropriate indicators are required to reduce these variations.American Society for Gastrointestinal Endoscopy and European Society of Gastrointestinal Endoscopy have announced the EUS quality indicators.Here, we reviewed the quality indicators of the EUS procedure in the current published guidelines.