Diagnostic Value of Various Endoscopic and Gastrointestinal Examinations

In several subprojects, we aim to answer various questions, such as:

• What is the diagnostic value of gastroscopy, colonoscopy, capsule endoscopy, and double-balloon enteroscopy for different indications?
• Can we better select patients based on symptoms, psychometric data, or laboratory findings to reduce unnecessary examinations and prioritize those who need endoscopy first?
• What is the diagnostic value of other functional measurements, such as anorectal manometry, esophageal manometry and pH monitoring, liver elastography, and defecography for different indications?