Investigators developed a real-time quality control system of esophagogastroduodenoscopy(EGD) named EGD automatic quality-control system (AQCS). Investigators carried a prospective multicenter randomized controlled trial to assess the performance of this system in quality control of real-time EGD, including detecting the early upper gastrointestinal cancer and precancerous lesions, assessing inspection completeness, mucosal visibility, time of EGD procedure and other indicators.
The purpose of our study was to assess the performance of esophagogastroduodenoscopy automatic quality-control system in real-time quality control of EGD.