Methods Magnification chromoendoscopy ( MCE) was performed in 2506 patients with gastroesophageal reflux disease ( GERD) and 106 patients with Barrett esophagus in our hospital during Feb,2003 -Feb,2004 were analyzed.

Microstructural features of nonerosive reflux disease and their clinic value under magnifying chromoendoscopy

Microstructural analysis of gastric premalignant lesions under magnifying chromoendoscopy(MCE) in 90 cases

Objective: To estimate the specificity and sensitivity for diagnosing lesions of large intestine with magnifying chromoendoscopy according to pit pattern classification as proposed by Kudo in comparison with histology, and to provide morphologic proofs for tumor progresses in microstructure observed by SEM on the basis of pit patterns of various lesions of large intestine.

Diagnosis of early colorectal cancers and precancerous lesions by magnifying endoscopy;

The gastric mucosa alterations in chronic gastritis with Helicobacter pylori infection under magnifying endoscopy combined with narrow band imaging

Objective: To explore the classification of gastric pits under magnifying endoscopy and their clinicopathological significance.

【Objective】Combining magnifying endoscope with mucosa staining technique to identify flat lesions(typeⅡ).

Objective To explore the practical means for identifying early large bowel carcinoma and precancerous lesions with magnifying endoscope.

Diagnostic Value of Chromoendoscopy and Narrow Band Imaging in Barrett s Esophagus;

Diagnostic Significance of Chromoendoscopy and Expression of P53,P63,P73 Protein in Early Gastric Cancer;

With the development of staining endoscopy,especially the application of amplificatory chromoendoscopy,fluorescence endoscopy and narrow-band imaging endoscopy,great progress has been made in the diagnosis of early gastric cancers.