A pilot study of single-use endoscopy in screening acute gastrointestinal bleeding

Figure 1 EG scan device. The EG scan (version I) is composed of a disposable optical probe, a handle, and a display monitor.

Figure 2 Comparison of diameters. A: The diameters of GIF-Q260 (Olympus) endoscopy; B: An optical probe of an EG scan device; C: An optical probe of a 16-Fr nasogastric tube.

Figure 3 A concordant case of acute gastrointestinal bleeding from Mallory-Weiss syndrome. A: EG scan shows blood at the esophagogastric junction; B: Conventional esophagogastroduodenoscopy (GIF-Q260) shows oozing from the tear wound of the esophagogastric junction.