ABSTRACT
Helicobacter pylori is a vital human pathogen involved as a causative organism in chronic gastritis [1]. Peptic ulceration is a common complication of this infection. Several study shows direct association between H. pylori and gastric carcinoma. The upper Gastrointestinal Endoscopy is investigation of choice for the screening and diagnosis of Helicobacter pylori related chronic gastritis. As field of endoscopy is getting advanced some new techniques like NBI (Narrow Band Imaging) are developed. Due to better visualization of Subendothelial Capillary Network (SECN) by using lights of two different wavelengths NBI method it is more useful in visualization of affected area of gastric mucosa [2]. Total 100 cases of chronic gastritis were diagnosed using upper G.I .Scopy, Biopsies were taken using both NBI and WLE and results were compared using Rapid Urease kit. Narrow band imaging was found more effective than conventional white light endoscopy in the diagnosis of H. Pylori related chronic gastritis [3].