1992 Volume 34 Issue 4 Pages 792-799_1
We examined whether maginifying electronic endoscopy (Olympus, GIF-V10Z, XGIF -200Z) can detect "the microstructure of the gastric mucosa" (gastric pit or sulcus, Leistenspitz) in cases with gastric elevated lesions such as the hyperplastic polyp, gastric adenoma, I type or IIa type early gastric cancer and ordinary fundic or pyroric gland mucosa. Magnifying electronic endoscopy can distinguish the line of the X-ray test chart which width is 50, um. On the other hand, the size of the microstructures measured by the computer system and the film of two dimensional microscopy is over 100μm. Therefore, we concluded that the magnifying electronic endoscopy can detect the microstructure of the gastric mucosa. We also developed an image processing of "band enhancement" which can visualize clearly the fine gastric mucosal pattern from the original endoscopic image. By using magnifying electronic endoscopy and "band enhancement", the characteristic mucosal patterns of the various kinds of gastric lesions can be understood and the diagnosis of gastric lesions is thought to be more accurate.
