Methods: DGR with 99MTC-EHIDA radionuclide imaging,serum NO concentration with colorimetric assay, H.pylori infection with histology (Giemsa stain) and H.pylori-IgG level with ELISA assay were detected in 65 patients with chronic gastritis.

• 方法 :对 6 5例慢性胃炎患者 ；用同位素99MTC -EHIDA测定十二指肠胃胆汁反流 ；硝酸还原酶法测定血清NO含量 ；采用胃黏膜经Giemsa染色后检测H .；pylori；用ELISA法测定血清H