Comparison of a novel bedside portable endoscopy device with nasogastric aspiration for identifying upper gastrointestinal bleeding

Figure 1 EG scan machine (A) and a display monitor (B).

Figure 2 Comparison of the diameters of conventional endoscopy (A, GIF-XQ260, Olympus, Tokyo, Japan), the EG scan (B), and 16F nasogastric tube (C).

Figure 3 Images of EG scan. A: Dark, coffee-ground colored blood clot; B: bright red fresh blood; C: multiple bluish colored esophageal varices.

Figure 4 Flow diagram illustrating patients enrolled in the study. EGD: Esophagogastroduodenoscopy.