Evidence based review of the impact of image enhanced endoscopy in the diagnosis of gastric disorders

Figure 1 High definition white light endoscopy view. A: A depressed lesion with mucosal discoloration due to early gastric cancer; B: High definition white light endoscopy view of early gastric cancer.

Figure 2 Mucosal irregularities and boundaries of a lesion. A: Gastric adenoma accentuated by indigo carmine; B: Early gastric cancer accentuated by indigo carmine.

Figure 3 Gastric intestinal metaplasia highlighted by methylene blue.

Figure 4 Gastric intestinal metaplasia highlighted by narrow band imaging using the EXERA III system with dual focus.

Figure 5 Best visualized with optical magnification. A: Magnifying narrow band image of gastric intestinal metaplasia showing, the light blue crest sign, surrounding central area of early gastric cancer; B: Magnifying narrow band image of early gastric cancer; C: Magnifying narrow band image of early gastric cancer.

Figure 6 Image of early gastric cancer visualized using narrow band imaging with digital magnification and dual focus imaging.

Figure 7 Performance characteristics. A: Image of gastric intestinal metaplasia visualized by blue laser imaging with optical magnification; B: Image of early gastric cancer visualized by blue laser imaging with optical magnification.